What are folding sofas. Mechanisms for transforming sofas - briefly about each

Choosing among the many types of transformation of sofas, you need to consider whether you will lay out a bed every day, or only occasionally, when guests rush into the house.

Book ("click-clack")

Mechanism: to expand the sofa, lift the seat and pull it towards you. It is reliable, time-tested.

• Three positions of the backrest: sitting, lying, "relax" (intermediate position with a half-reclined back).
• Compactness. Doesn't take a lot of space to spread out.
• As a rule, it is possible to provide a linen box.
• The sleeping place is flat, without "kinks".

Eurobook

Mechanism: The seat is pushed forward, after which the back of the sofa is lowered. In fact, it is difficult to call similar mechanisms: the seat leaves by sliding along the guides, the backrest is lowered in manual mode.

• Durability: Simplicity sofa folding mechanism eliminates breakage.
• Large selection of sizes.
• Large linen box due to the lack of internal parts of the mechanism.
• Flat sleeping surface.

Eurobook "Tick-Tock"

Mechanism: among others types of transformation of sofas this one is especially respectful of the flooring: the wheels do not move on the floor, the seat moves along a trajectory resembling a semicircle.

• Scratches on parquet, linoleum and other floor coverings are excluded.
• Doesn't require a lot of layout space.

Accordion

Mechanism: this “musical” name was given for its similarity with the principle of stretching the bellows of this musical instrument. The seat raises until it clicks, and then extends to the stop.

• Minimum assembled size.
• Large bed size.
• mechanism reliability.

Withdrawable

Mechanism: The seat pulls all other parts along with it. To unfold the sofa, you need to pull the seat strap hidden at the bottom.

• Of all sofa folding mechanisms this one is the most reliable.
• Takes up little space when folded
• Large size bed with a small size of the folded structure.

Cot

Includes the following types of sofa transformation: American and French. They have some differences, but are similar in that the assembled bed is under the seat.

french look

Mechanism: the seat must be pulled out towards you and then up, after that the folded sofa should be “unfolded”. Before that, you need to remove the pillows.

• When folded, it takes up little space.
• When unfolded, it has a fairly large bed.

American view ("sedaflex")

Mechanism: unfolds similarly to the French mechanism, while the headrest does not need to be removed, it will automatically move to the desired position.

• More durable mechanism than the French counterpart.
• There is no need to dismantle structural elements.

Dolphin

Mechanism: the movement of the sleeper at a given sofa folding mechanism reminiscent of a dolphin dive. It is necessary to pull the strap attached to the seat and pull it out completely.

• The most durable of all types of transformation of sofas. Suitable for daily unfolding.
• The sleeping place is large, flat.
• Easy to unfold and fold.

Conrad

Of all types of transformation of sofas this option is the most convenient for sleeping, as it allows the use of spring blocks in the design, which is most beneficial for health and creates comfortable conditions for sleeping.

Mechanism: the part located under the seat extends and stretches further, dragging the seat with it, and then part of the back, after which the first part rises up, on the same level with the seat, and the part of the back falls to the same level.

• A sleeping place close in quality to an orthopedic mattress.
• Significant space saving when folded with a relatively large bed.

• cannot be moved close to the wall - there should be 20–30 centimeters left for free play when unfolding;
• an uneven sleeping place is obtained due to a clear separation of soft surfaces in the middle;
• transformation requires some effort.

"Eurobook", "Tick-tock", "Pantograph"

An equally popular model on the market is the eurobook sofa. He has a very simple way of unfolding: the seat is pushed forward, and the backrest fits into the vacated space.

In the “Tick-Tock” model, the transformation takes place on weight along a semicircle trajectory on springs, that is, it is not necessary to carry the retractable block along the floor. This makes such a mechanism more attractive, and the model is sometimes called the "Walking Eurobook".

The advantages of sofas include:

• reliable mechanism;
• ease of unfolding;
• spacious inner drawer;
• flat bed;
• choice of sizes.

Of the shortcomings, a deep seat can be noted, which may not always be convenient. But this problem is easily solved with the help of sofa cushions.

"Accordion"

This type of transformation of upholstered furniture has firmly won the sympathy of consumers. This can be explained by the increased reliability of the design and the ease of turning the sofa into a bed. To unfold it, you need to lift the seat and pull it towards you. At the same time, the backrest, consisting of two parts, moves forward, and all the elements are laid out like an accordion in one plane.

This is a stable and easy-to-use model, but it has one significant drawback - there is no box for linen.

Withdrawable or "Telescope"

The layout mechanism of the structure is very convenient. First, the main seat of the sofa rolls out to the stop. At the same time, the headrest of the bed extends from behind the back. An additional seat or lumbar soft part is placed in the resulting niche between the two sections of the sofa.

"Telescopes" when folded are very compact, so they can be used even in small spaces. After the transformation, a fairly wide and comfortable bed is obtained.

The disadvantages include the small height of the bed and the fact that the movable mechanism can damage the floor covering.

Folding bed - French type, American (sedaflex) and Belgian

In sofas of this type, the bed is pulled out from under the seat, and then the sections are unfolded and placed on supports or legs.

French - sections are folded three times under the seat. To expand the structure, you must first remove the top cushions. Not very suitable for frequent use, as the mechanism wears out quickly.

American (sedaflex) - unlike the previous model, it has two sections and is completed with a thicker mattress. When the sofa is laid out, the low back is lowered and becomes part of the bed. Reinforced mechanism allows you to use it as an everyday place to sleep.

Belgian - can have both two and three additions. The filling and height of the mattress depends on this.

Dolphin and Kangaroo

The design of furniture with a durable reliable mechanism "Dolphin" is simple and convenient. To expand the sofa, you need to pull out a special block from under the seat, and then remove the second part of the structure from it upwards and towards yourself.

Experts consider this mechanism the most durable of all types. They are often equipped with corner models. They have a spacious and flat place to sleep, and a box for storing bed linen is installed in the side part.

The mechanism "Kangaroo" differs from the "Dolphin" in the ability to create upholstered furniture with higher legs.

"Conrad"

A sofa with such a folding mechanism is considered the most comfortable for sleeping. The design has the ability to use spring blocks. The mattress is close in parameters to orthopedic, which improves the quality of night rest.

It is not difficult to lay out such a sofa: the part located under the seat is pulled forward, and with it the rest of the sections. A distinctive feature and an undoubted plus of the sofa with the Konrad mechanism is its compactness when folded and the ability to turn into a comfortable bed.

"Lit" or "Elf"

If you need to get a small place to sleep, then you should pay attention to compact models with the Lit or Elf mechanism. When unfolding, it will be enough to lower the adjustable armrest, and the sofa will turn into a comfortable single bed. In this case, the back does not move, and the seat becomes a sleeping place.

"Puma"

The Puma design differs from other models in that it does not touch the floor when unfolded. The mechanism is equipped with a special spring system that allows you to reduce the force during transformation: you need to grab the front edge of the seat, push it up and easily pull it towards you. The middle part of the bed gently rises from the inner space and takes its position.

The designs are very durable, they can be both straight and angular, while the latter have a box for linen.

With unfolding on the floor

This is the most budgetary model of all transformation mechanisms. Two sections of the bed are laid out directly on the floor, as they do not have supports. When folded, they are inside the case. For daily use, this type is not very comfortable. It is better to use it as a guest option.

"Spartacus"

The mechanism "Spartacus" resembles the "French cot", but has a welded grille, which strengthens the entire structure. Therefore, such models can be used for everyday use. The inconveniences are the same as in all folding beds: in order to unfold, you must first remove the pillows, and there is no box for storing linen.

"Recliner"

The Recliner sofa layout mechanism is equipped with a special system that allows you to change the angle of the backrest, and a footrest. Such models are high-tech, often have vibration massage systems and remote control using a remote control.

The sofa is designed taking into account the anatomical features of a person, so it is convenient to relax on it by adjusting the position of the back and stand. The disadvantages include the high cost and the impossibility of a full-fledged layout to get a bed.

Transformer

Models "Transformer" have a swivel type of unfolding, they look stylish and modern. Turning such a sofa into a bed is very simple: one part rolls back at an angle of 90 degrees and moves back. It turns out a spacious place to sleep.

For convenient unfolding, the sofa is equipped with rubberized wheels, so moving the swivel part is not difficult. The mobile module can also be moved in the opposite direction. Some models have a fold down back and all have two large storage drawers.

"Caravan" and "Daytona"

"Caravan" allows you to transform a sofa into a bed due to a complex metal structure. The main plus is that it unfolds in just one movement, and in its normal state it takes up little space. This makes it possible to install such models in small spaces. They fit especially well in the interior of the children's room.

"Daytona" - the design of a new generation of double decomposition. To turn into a bed, you need to pull the backrest, which falls and wraps under the bed. It is very convenient that you do not need to remove the pillows during the transformation. Strength and durability is ensured by a metal welded frame and elastic straps. Great for daily use.

"Saber"

Refers to roll-out, but the design of the "Saber" is more complicated than that of similar models. The seat moves forward if the backrest is moved forward towards you. At the same time, the backrest and headrest tip over and lie on the spacious inner box. It turns out a bed on which you can sleep comfortably.

What to look for when choosing a sofa

When choosing, it is necessary to inspect the mechanism, ask the seller in detail about the pros and cons of various modifications. The service life of new furniture will depend on the correct selection of the design.

You can draw and take with you a plan of the room indicating the dimensions, so as not to be mistaken with the dimensions and accurately calculate how the model you like will be placed, whether there is enough space for unfolding.

It is worth clarifying information about the filler. Be sure to independently assemble and disassemble the sleeping system and make sure that the transformation is convenient.

Block filler

Manufacturers use a variety of materials to fill the soft parts of furniture: pillows, backs, seats, armrests.

1. Spring blocks - provide additional comfort for the body during sleep, there are three types: dependent, "snake", independent.
2. Polyurethane foam (PPU) or foam rubber - highly elastic and inexpensive, environmentally friendly, has good elasticity.
3. Felt and padded jacket - natural materials, the first is obtained from sheep and goat wool, the second - from cotton wool. Felt acts as a protective layer for polyurethane foam and spring blocks, while their surface becomes more resistant to wear. The padded jacket is laid between layers of filler for increased comfort.
4. Sintepon is an inexpensive and high-quality artificial filler that gives furniture softness, elasticity, is not susceptible to the formation of fungus, but does not hold its shape well.
5. Hollofiber - looks like fluffy balls of different sizes, made from polyester fibers, quickly restores its original shape, warm and soft;
6. Holcon (strutoplast) - elastic and warm, environmentally friendly, does not absorb moisture and odors.
7. Periotek is a modern non-woven material consisting of polyester fibers, durable, resilient, breathable, fireproof.
8. Struttofiber - wear-resistant, elastic.
9. Latex is a natural material used in the manufacture of expensive models of upholstered furniture, has increased elasticity, is non-toxic, quickly restores its original shape, does not cause allergies, and has a long service life.

For sleep, it is preferable to choose models with spring blocks. They will give the body the greatest relaxation and proper rest. The main advantage of such systems is durability and strength.

Before buying, it is important to understand the features of the device of various models and choose the most suitable one depending on the purpose and frequency of use. Experts do not advise buying the cheapest options, because the quality will be low, and the service life will be short.

Video

Watch a video showing popular ways to transform upholstered furniture.

It is difficult to imagine an apartment, house or office without a sofa. You can not only sit on it, but also use it for relaxation, but whatever this product is, it brings coziness, comfort and warmth. Typically, types of sofas differ in design, type of upholstery and method of transformation.

Let's see clearly what sofas are. Furniture companies have developed various designs of this type of upholstered furniture. They are represented by corner, children's, leather and other models. It is important to know how products differ, what transformation mechanisms are, and which one is best to choose. You also need to know other features of upholstered furniture, which determines its price range.

Manufacturers present us with a huge selection of sofas for every taste.

Corner sofas will decorate any home

Consider, for example, corner sofas. This upholstered furniture has won its niche among the popularity of the population. Models can have different transformation mechanisms. So the corners are very convenient. Such pieces of furniture are both left-handed and right-handed. In this case, you need to imagine and plan where in the apartment your purchase will be placed. But some models are collapsible and they can be interchanged and assembled like a designer, these are the so-called modular sofas.

Among the modular ones, they are especially popular with the population. The principle of its operation is similar to the jump of a dolphin that emerges from the water. It should be noted that corner sofas with a dolphin mechanism are also easy to use, and their comfort, smoothness and is considered an advantage.

Eliteness is a property of leather sofas

Among the various types, leather ones occupy a special crown place. They are beautiful in any interior, provide a great opportunity to relax and unwind. Leather is quite an expensive material, and, nevertheless, such sofas are quite in demand. They indicate the secured financial position of the owner, his high status, solidity and success. Leather is a durable and practical material that, in the form of furniture upholstery, will last a long time. buy for the office, where they mainly decorate executive offices and meeting rooms. They make the most favorable impression on clients and business partners.

They differ in the number of seats. They are triple, double and corner. A good sofa is made from deciduous, coniferous - hardwood. Usually the raw material is beech, birch, alder wood. Sofas differ in various models, colors and style solutions.

Leather is and will be an expensive, solid upholstery material.

Simple and easy to unfold the sofa

If we consider the mechanisms of transformation, then one of the most convenient is the "Eurobook". It is durable and has a long service life. The principle of operation of such a product is simple, just roll the seat of the sofa forward, then move the back to a horizontal position from a vertical one, and your sofa is laid out.

It should be noted the obvious advantages of these types of sofas: ease of transformation, size and comfort of the bed, reliability, the presence of drawers for linen. It is also important that the sofa can be installed close to the wall. When purchasing a sofa, it is important to pay attention to the presence of a spring block, orthopedic armor, as well as molded elastic polyurethane foam, which should be in the soft elements of the back and seats.

When studying the market, take a closer look at. It has a special folding mechanism that unfolds like an accordion and stretches out. Accordion sofas are ideal for those who do not want to spend a lot of time and effort in the evening preparing a bed and cleaning it in the morning.

An easy-to-use transformation mechanism allows you to make a luxurious bed out of one movement, and it is just as easy to return a piece of furniture to its original state. This factor has become an advantage of upholstered furniture, earning popularity among consumers. In fact, "Accordion" is a sleeping place, which consists of three parts. One of them is before transformation - a seat, the other two fold, forming a back. These sofas are of two types:

• sleeping place - latoflex, metal frame with mechanism, removable cover, mattress;
• filler and drapery - a single non-disassembled module, classic: frame.

Sofa "Eurobook" is simple and very convenient to use

Accordion sofas are durable, thanks to the design a sufficiently large sleeping place up to 180 cm is created. Accordion sofas, which have a metal frame in their design, are easy to care for, since removable covers can be washed. Such a transformation mechanism allows you to create seamless sleeping places, but the main thing is that the orthopedic system based on latoflex provides a comfortable and healthy sleep.

Consumers appreciate the durability of upholstered furniture

On the furniture market, domestic and foreign manufacturers of furniture products present sofas with a roll-out transformation mechanism. Such models have gained popularity among the population, thanks to the technical and consumer characteristics of sofas. Upholstered furniture of these types is particularly durable, designed for daily unfolding and heavy loads. When assembled, a sofa with a roll-out mechanism takes up little space, and when unfolded, the area of ​​\u200b\u200bthe bed increases by 3 times compared to its original position.

The sofa-book got its name from the similarity of the principle of operation with the opened book and appearance. This piece of upholstered furniture has been at the peak of popularity for a long time, thanks to its excellent consumer properties, such as versatility and convenience.

If the sofa book is folded, it looks compact. When folded, the backrest and seat are the same size. The design provides for a large and roomy drawer for various things, but to a greater extent. The box is located under the bottom. More advanced models of upholstered furniture are equipped with mechanisms that adjust the tilt level of the headboard when folded. However, at the same time, this type of sofa with a spring block has a drawback - wear and tear, that is, performance is worse than in other types of upholstered furniture designs. Therefore, book sofas can be bought relatively inexpensively, and their low price is always an order of magnitude lower than the cost of other representatives of this type of furniture. Furniture companies produce various modifications of "books", which come with and without armrests. Some models have different designs, for example, embossed backs are available,

The sofa-book will save your space during the day, and at night it will be a full-fledged bed

A variety of transformation mechanisms is the key to the consumer's heart

They deservedly took their place in the family of upholstered furniture. These models allow you to fix the back in various positions, including for resting at night. This feature has become fundamental when choosing upholstered furniture by the population and their preferences.

Another representative of upholstered furniture is a sofa with a pantograph mechanism, which has a fairly simple unfolding system. To increase the sleeping place, it is necessary to slightly pull the seat up and towards you, and then the design will automatically continue the initiated action, that is, the seat will rise slightly above the floor, and then lower. Further, according to the principle of unfolding, as in, the second block is unfolded into a horizontally-console position. The advantage of the pantograph mechanism is that it does not touch the floor during the transformation.

The pantograph makes a certain part of the sofa seem to rise up. Therefore, it is also called a "walking" piece of furniture. It turns out that even a child can decompose such a sofa. This transformation mechanism is widely used in both straight and corner sofas. A box for bed linen and other textiles and things is located under the seat.

Among upholstered furniture, sofas with a puma mechanism are easily and smoothly disassembled. This principle of transformation resembles the movement of a cat's paw, which is why the mechanism was given this name. Its advantage is easy unfolding, that is, in order to prepare a bed, you need to make a minimum of effort. It is important that during the transformation the sofa does not touch the floor. Therefore, even the most delicate flooring will not be damaged by frequent transformations.

Even a child can handle the sofa transformation mechanism

To unfold the seat, pull the seat up and towards you a little, and then the mechanism will do all the work. The seat "jumps" forward, and the second block, which is located under the seat, rises up. Thus, a wide and even bed is formed. Upholstered furniture in the form of puma sofas can be made using various fillers: from a block of independent springs to polyurethane foam.

The best upholstered furniture for children

Upholstered furniture, be it sofas with a sedaflex mechanism, or very comfortable and comfortable sofas with an American folding mechanism, create a cozy and comfortable atmosphere in any room or room, complement the interior, bringing elegance and sophistication to it. These statements fully apply to children's sofas. This piece of furniture is often bought instead of a children's bed, this is especially justified when the children's room is small.

When purchasing such a sofa, you should take care of the health of the child. Therefore, preference should be given to items that are made from environmentally friendly materials. The frame of the sofas is made of wood, most often pine, which is easy to process, and at the same time it is inexpensive. Sheep wool, straw, horsehair, swan's down, etc. are used as a filler. In the event that the child suffers from allergies, then you can choose a sofa filled with artificial materials.

Upholstered furniture is now produced universal, so it is suitable for both a teenager and an adult. Sofas are available in various designs, but recently it has become a fashion favorite. It can be used as a bed at night, and during the day it turns into a compact sofa, thereby freeing up space for playing, playing sports. For children and teenagers, manufacturers have provided sofas with a transformation mechanism (a book and a folding mechanism). As a rule, all pieces of furniture have a special box or space inside the structure where a child can put things. This advantage allows the room to refuse to purchase additional pieces of furniture, such as or a cabinet. Thus, the free area of ​​\u200b\u200bthe premises is significantly expanded, and the family budget is saved.

When buying a children's sofa, remember, you should not save on a child.

When choosing sofas for children, experts recommend paying attention not only to the design, colors, but also to the safety of the product. Upholstered furniture should not have sharp corners, open metal parts. It is these elements that can become an obstacle, hitting which a child can get hurt.

I suggest you get acquainted with the most common mechanisms for transforming a sofa into a bed. You will learn the pros and cons of each and will be able to choose the type of sofa bed that suits you.

• Book

  The type of sofa layout familiar to everyone since Soviet times. Outwardly, the sofa resembles an open book.

  Pros: With proper execution, it forms a fairly comfortable sleeping place. Large laundry box. It is possible to use high-quality spring filling. Suitable for daily use.
  Minuses: Restrictions in design - the seats and back are a sleeping place, which means they must be even and close to a rectangular shape. The bed is narrow. If the model increases the width of the bed, then when unfolding it is necessary to move the sofa away from the wall, which is already inconvenient. A large number of mechanisms from different manufacturers. When the "book" mechanism fails, it is not always possible to find a suitable replacement.

• click-clack

  Modernized version of the book. In addition to the "lying" and "sitting" positions, it has a third intermediate "reclining" variant. Do not confuse with "Tick-tock" - this is a completely different mechanism.

  Pros: There is a laundry box. Suitable for daily use. Only two types of mechanisms (locks) - it is very easy to pick up and replace if it fails. It is also easy to replace the wooden battens of the sofa base.
  Minuses: The same as the "book" - the need to move the sofa away from the wall when unfolding, design restrictions. It is carried out on a metal frame with wooden battens (lamellas), which break when the point load is exceeded. However, broken lamellas in such sofas can simply be replaced with new armor.

• Eurobook

  Perhaps the best option if you need a sofa bed for daily use. It has all the advantages of the "book", but is deprived of its disadvantages.

  Pros: A fairly reliable mechanism, due to its simplicity, or rather the absence (usual loops are used). Wide bed. It is possible to use high-quality spring filling. With proper execution, there is no need to move away from the wall. Large linen box. The best option for daily sleep.
  Minuses: When folded, additional back cushions must be used.

• Tick-tock (aka Pantograph)

  Variety of "Eurobook". It differs in that the seat does not roll out on wheels, but steps forward with the help of a mechanism with springs.

  Pros: This is the same eurobook, only there are no wheels rolling on the floor.
  Minuses: Unlike the usual eurobook, a walking mechanism is installed, which makes the product more expensive.

• Accordion

  There are mono modifications of this type of mechanism. From those based on ordinary hinges and wooden frames using a "book" lock mechanism to factory-made all-metal frames with birch battens.

  Pros: Any bed width. Suitable for daily use.
  Minuses: Design restrictions. It's more of a youth style.

• Dolphin (aka Microlift)

  Easy to use mechanism. Most often used in corner sofas.

  Pros: It just unfolds. Reliable enough. Suitable for daily use when used correctly.
  Minuses: There is no drawer for linen (in corner sofas this is usually compensated by the presence of a side drawer). Often, manufacturers put much thinner filler (foam rubber) on the roll-out part than on the other parts - it is inconvenient to sleep on such a design.

• Vykatny (aka Telescope)

  10 years ago it was a very common system. Has several modifications.

  Pros: Ease of unfolding. As a rule, there is a small box for linen.
  Minuses: Hardware often fails. In the vast majority of models, there are strong differences in the thickness of the pillows across the bed, as a result - reduced comfort. The bed is low. This is rather a guest option, and not for daily sleep.

The sofa, as you know, is an integral part of any interior and, as a rule, one of the most important elements in the apartment.

At the same time, the search for the very sofa that will delight you and your loved ones, as well as be able to fit the whole family and fit amazingly into your particular interior is quite difficult. You can Buy a sofa in Moscow of any design, but first you should decide what you need.

In our today's article, we will try to understand in as much detail as possible how not to make a mistake with the choice, what types of sofas exist and how to find the right option for you?

What are the types of sofas

There are a huge number of sofas on the market with a different set of characteristics, which we will dwell on in more detail. It should be said that the choice of a sofa should be made consciously, weighing all the pros and cons, as well as starting from the purpose for which you need it.

After all, you must admit that if you are part of a large family that often comes to visit you and stays for a couple of days, you can’t do without a folding mechanism, and if you just spend a couple of hours a week on the sofa, then you don’t need such a mechanism and not worth paying for it. Now let's take a closer look at the types of sofas.

Transformation mechanism. Whichever sofa you choose, each of them can be equipped with a folding mechanism. And by the way, such mechanisms are also different in the way the sofas are laid out:

• “Book” (the most traditional mechanism that is familiar to everyone, in order to bring this sofa to a horizontal position, you need to raise the seat up until it clicks, and the back will automatically lower, creating a sleeping place, a certain disadvantage of such a mechanism is that you cannot put the sofa close to the wall)
• "Eurobook" (in this case, in order to bring the sofa to a horizontal position, it is necessary to push the seat forward and tilt the back into the vacated space, a significant advantage of this model is the ease of transformation and soft back)
• “click-clack” (this mechanism is also similar in unfolding to a “book”, but in addition to this, it has the function of fixing the back and the ability to install it in several positions, such a nuance will allow you to choose exactly the angle of inclination at which it will be convenient to relax, but in this case, the sofa will also need to be installed at a distance from the wall)
• "dolphin" (this model is most often found in corner sofas, in this case the pillow is pulled out from under the seat and pulled up with a special loop, being installed flush with the main seat, this is an extremely popular mechanism that also has a linen box)
• “French folding bed” (a mattress is tripled under the seat in the sofa, which is subsequently unfolded, this is a very comfortable and compact model, though it is hardly suitable for everyday use)
• "Accordion" (in order to expand the sofa, it is necessary to push the seat forward and expand the double-folded back, such a sofa has large dimensions and transforms into a full-fledged and comfortable sleeping place, although the appearance of such models leaves much to be desired and over time, ugly creases remain on the mattress)