@bluesplashgirl. Hi. I know what you mean about things sliding toward the foot of the bed. Last year we invested in a split king bed. I can raise my head up without interfering with my husband's side. (I have noticed he has started raising his up a little bit.) Anyway, what I do is raise the foot of the bed some so sliding down doesn't happen. It kinda looks like I sleeping in the fork of a tree but the mattress is so comfortable it doesn't feel awkward at all. We spent a lot of time deciding of this type bed but so glad we were able to get one--they're pricey. Good luck.