Hi Snowberry...I slept on a memory foam mattress at a friends house and sweat all night long. Maybe that's just me. I too have been falling asleep on the couch lately. I like to have something against my back. Our relatively new mattress on the bed has a thick waffle pad on it along with the pillow top and it still hurts my hips. I think I might try one of those goose down thingys that lay on top of the mattress.