And what mattresses they use. When we hit the road, we always use H.I. Express and I ALWAYS sleep like a baby! I want to milk the one we have because we JUST bought it a year and a half ago. It's hard as hell and I toss n turn WAY too much. Heck, I might bite the bullet and get a new one sooner than later. Just AAAAAAAAANOTHER PITA about getting older. USED to be if I had a half way decent pillow, I could sleep on anything.