These are actually anti-decubitus mattresses used to help with blood flow and bed sores.  They come with an air pump to keep pressure and flow.  We have several hundred on the shelf and donated some to a shelter, they used them as beds during over flow.  They worked great for them.  So, an alternative use for a better nights sleep, give it a try.  These retail at about $100 through pharmacy and medical supply houses.  We need them out of the warehouse!  They are twin size 36" x 78".  Thanks for loking!