An external stimulus such as heat triggers the shape memory effect. For the foil, the researchers synthesized a polyurethane foam and then compressed it. At a temperature of sixty degrees Celsius, the ...

We look at the benefits and drawbacks of memory foam mattresses, to help you decide if memory foam is right for your sleep needs ...

My fellow mattress experts and I visited the 3Z factory in Arizona and got a behind-the-scenes look at the secret foam-pouring process for beds.

Memory foam mattresses are made of polyurethane viscoelastic foam, and this material moulds to the shape of any pressure applied to it. In fact, it was invented by NASA to keep pilots cushioned ...

Originally designed by NASA for aircraft cushions, memory foam is made mostly from a type of plastic called polyurethane — as are most foams. But what makes memory foam “remember” the shape ...

It features three layers of visco memory foam, a type of polyurethane foam that was developed for airplane cushions in the 1970s, and which is now used widely in memory foam mattresses.

An external stimulus such as heat triggers the shape memory effect. For the foil, the researchers synthesized a polyurethane foam and then compressed it. At a temperature of sixty degrees Celsius ...

An external stimulus such as heat triggers the shape memory effect. For the foil, the researchers synthesized a polyurethane foam and then compressed it. At a temperature of sixty degrees Celsius ...