Memory foam mattress is made of soft and energy absorbent viscoelastic substance. It was made for NASA plane’s seats in the mid 60s. It’s designed so it can mold in response of pressure and heat. It will be back to the original shape if the pressure is removed and it will distribute the body weight evenly. It will make you feel more comfortable. So, it becomes popular in various things in different depth and density. The mattress can reduce the ulcer pressure. It can be used as pads for the disabled person’s seat.
It can be rather uncomfortable in hot weather. You need to put the memory foam pad on open air for at last 24 hours before using to make the off gassing or the odd chemical smell disappear. This kind of soft surface is not recommended for baby It can trap carbon dioxide and can increase the risk of Sudden Infant Death Syndrome (SIDS) deaths. If you have bad spine condition, you should the foam with good density of 4 pounds or higher.