Related to Sleep Disorders Memory Foam: Pros and Cons Considering a memory foam mattress or similar product? Read what sleep experts say about it. Few things feel as good as a good night's sleep. That's especially true if sleep seems to escape you, night after night after night. If you've heard about memory foam, you may wonder if it could improve the quality of yoursleep. Some people swear by it. Others are less enthusiastic. What exactly is memory foam? And what are its pros and cons? Here's information to help you decide whether memory foam is worth a try. What Is Memory Foam? First designed in the mid-1960s for NASA airplane seats, memory foam is made from a substance called viscoelastic. It is both highly energy absorbent and soft. Memory foam molds to the body in response to heat and pressure, evenly distributing body weight. It then returns to its original shape once you remove the pressure. In addition to protecting against impact, these properties make memory foam very comfortable.
After its "virgin flight" for NASA, memory foam made a foray into other applications. For example, it was used as cushioning in helmets and shoes. Medicine found a use for it in prosthetics and products to prevent pressure ulcers such as seating pads for people who are severely disabled. Then, memory foam really took off. It's now well known for its use in pillows, mattress pads, and mattresses, which come in different densities and depths. What Are the Benefits of Memory Foam? Could the special properties of memory foam enhance your sleep? Sleep specialist Donna L. Arand, PhD, says that objective studies supporting the claimed benefits of memory foam -- or the effects of any particular type of sleeping surface -- are lacking. This is true for a variety of reasons, she says. This type of sleep study can be expensive, if conducted independently. Or it is "chased" by a shadow of bias, if supported by industry. Also, some sleep technology, such as memory foam, is relatively new, so it hasn't been well studied.
But perhaps one of the more difficult stumbling blocks to testing the health benefits of mattresses such as memory foam is the subjective nature of sleep. It is simply difficult to measure. Sometimes the brain's electrical activity, measured with an electroencephalogram (EEG), and other findings recorded during a sleep test don't always match up perfectly with a person's subjective experience, says Arand, who is the clinical director of the Kettering Sleep Disorders Center in Dayton, Ohio. "They might say, ‘I had a great night's sleep,' but the EEG parameters might not really indicate that." Sleep is not only subjective, but preferences for sleep surfaces are individual, Arand says. "There's quite a bit of variability between individuals in terms of what type of surface -- whether it's firm, hard, or soft -- they prefer when they're sleeping," she says. "As far as we know, there is no rhyme or reason for that." Many of Arand's patients who use memory foam have offered unsolicited glowing reports like these about memory foam: "I'm sleeping great."
"Best sleep I've ever had." "I love going to bed at night." Arand says these anecdotal responses may be one-sided. That's because she and other staff don't ask all their patients about their sleep surfaces. "We may only be hearing the good stuff," Arand says. Kathy R. Gromer, MD, sleep specialist with the Minnesota Sleep Institute in Minneapolis, agrees that memory foam may improve sleep. "It can, if it relieves painful pressure points," she says. But Gromer adds that memory foam doesn't do anything for sleep apnea or other sleep-breathing disorders -- and sleep disorders are the primary complaint of most her patients. "When you lie on the memory foam, the heat from your body softens it in appropriate points," Arand says, "so this helps to support your body along the curves and natural lines of the body." Memory foam manufacturers claim this helps relieve pain and thereby promotes more restful sleep. And, though consumers often believe that very firm mattresses are best, more "giving" mattresses like these may lead to better sleep in people with back pain, according to the National Sleep Foundation.
Although there aren't scientific data to support the hypothesis, Arand wonders whether memory foam sleep surfaces might be especially helpful for older people. For them, minimizing extra movement could reduce the number of times they awaken during the night. Being less aware of a bed partner's movements might be an extra benefit, she adds. "Without the coiled springs, you feel your sleep partner's movement less, and that might help, too." What Are the Disadvantages of Memory Foam? Gromer says that memory foam products may retain body heat, which could make them less comfortable in warm weather. However, Arand has not heard this complaint from her patients. "In our culture, most people can adjust their thermostats or blankets for the appropriate season," Arand says. When new, memory foam can produce an odd chemical smell -- a phenomenon called offgassing. To minimize this problem, the Sleep Products Safety Council, a sleep products trade group, recommends airing out the mattress or pad for at least 24 hours before putting sheets on it.
"If you follow directions, the smell dissipates quickly," Arand says, "But I've never heard of anyone having reactions to it." Are Memory Foam Products Safe for Young Children? "I would strongly recommend avoiding this and similar very soft materials for use in infants' beds," Gromer says. "That's because soft bedding traps [carbon dioxide] and increases the risk of sudden infant death syndrome (SIDS) deaths."If you can’t afford a new mattress – or you’re not ready to replace your existing one, but are aware it needs a pick-me-up – then a topper could become your new best friend. Sitting on top of the mattress, under your sheets, it offers extra padding and comfort that could make all the difference to your quality of sleep. Research the fillings as rigorously as you would with a new mattress. They all have different benefits for different kinds of sleepers and types of people – for instance, if you get hot at night or you suffer from allergies. Check how snugly the topper fits onto the bed – you don’t want it to move about.
And be sure that the filling is evenly distributed, just as you’d want it to be with a duvet. 1. John Lewis Soft Touch Washable Mattress Topper: from £75, John Lewis This 6cm polyester topper, with dual layers and woven fabric, offers cloud-like comfort. It lasts well too, staying squidgy and soft without going flat. Plus, you can wash it in the machine umpteen times without losing any of the quality. Great value for hotel-like luxury. 2. Breasley Flexcell Mattress Topper: from £129, Mattress Online This thick, comfy topper is made from memory foam, which moulds to your body’s shape and distributes your weight evenly. There’s a smooth winter side, which gets really quite warm (great for those who feel chilly at night), and a bumpy summer side, which circulates air to keep you cooler. 3. Hästens Top Mattress BJ: from £670, Hästens This is the deepest topper in our roundup (7cm) and it feels like you’ve got a whole new deluxe mattress. It’s handmade from all-natural materials including wool, cotton and flexible horsetail hair, all of which keeps your body at the ideal temperature and means the mattress stays comfortable and durable.
It is very heavy, though, and it can’t be washed. 4. Vispring Heavenly Mattress Topper: from £550, John Lewis Vispring is the crème-de-la-crème of mattress brands, and its mattress toppers are equally fabulous. Each one is handmade to order in any size and generously filled with the best British wool, which all makes for a comfy, soft, breathable and hypoallergenic sleeping experience. 5. The White Company Supreme Luxury Down Topper: from £150, The White Company Anyone who’s experienced good duck down and feather bedding will know that this filling can swiftly take you into the land of nod in the lap of luxury. The same can be said of this incredibly comfy topper. The top layer includes down for extra softness, while the bottom layer is 100 per cent feather for support. It's box stitched for even distribution, but it does need regularly plumping up. 6. Dorma Anti-Allergy Mattress Topper: from £45, Dunelm This is excellent value for a soft and plump mattress cover, made from spiral fibre which is encased in 100 per cent cotton sheeting.
We found it every bit as good as some toppers we tested (that didn’t make this list) at two or three times the price. It fits well on the bed and is machine washable. 7. The Woolroom Deluxe Wool Topper: from £111.99, The Woolroom This soft and cosy topper, made from top-notch British wool, carries the British Allergy Foundation’s Seal of Approval, making it an ideal choice for anyone who suffers from asthma, allergies or eczema. It’s 3cm thick, extremely well-made, keeps body temperature comfortable throughout the night and is machine washable. 8. Silksleep Topper: from £110, Silksleep This works like a fitted sheet, wrapping right round your mattress. At just 1cm thick, it’s neither firm nor supportive, but the 300 thread-count cotton cover, filled with long-fibre silk, does a particularly good job of regulating body temperature – ideal for women of a certain age – and it feels luxurious. Dust mites hate silk, so it’s also good for allergy sufferers.
9. Soak and Sleep Ultimate Microfibre with Silk Topper: from £60, Soak & Sleep This is a good one for anyone who wants the luxury, springy feel of down and feather, but either can’t afford it or is allergic. The filling – top-quality, hypoallergenic microfibre and silk – is box stitched so the filing doesn’t disappear down one end, no matter how much you toss and turn at night. 10. Marks & Spencer Supersoft Mattress Enhancer: From £89, Marks & Spencer This is soft but supportive, thanks to the cluster fibres that cushion your body. Particularly well suited to those who get chilly at night, it keeps the bed nice and warm – so probably not the best for those prone to sweating while they sleep. 11. Ikea Talgje: from £65, Ikea Ikea has a wide range of mattress covers, with this one – a blend of cotton and polyester foam filling – towards the bottom of the price range. It has a good, snug fit and although it’s only 3.5cm thick, it offers an indulgent layer of comfort, particularly for the price.