Back saverWe put this on our rv mattress, which is pretty thin and hurts my back. First night and I slept like a baby. It took longer to put on the bed then expected, but space is limited int the rv and it kept sticking to the mattress. I should have put it on the mattress then let it expand all the way and it would have been easier to move around, I think. Anyways this was a great purchase overall and much needed! I didn't need to buy different sheets for them to still fit on my mattress, but if you have a full size mattress, you may need to get over sized sheets.
by Jaime