In New York I sleep on a Futon be, which is quite firm. I've been sleeping on a futon bed for probably 10 years and I like it, it's also a twin sized bed. The bed I'm sleeping on at my sisters is a double with a soft mattress. I sleep on the left side of the bed, but sometimes find that during the night I walk into the middle of the bed in my sleep. I have a nice room in my sisters house.