For the longest time I had a full size futon. Then my back started hurting more so I got an actual mattress (queen size) but then that mattress didn't help and then I found out about all the crazy chemicals that go into a mattress and I thought, wait if I'm all into natural health now and I sleep on a bed of chemicals on average of 8 hours a day that's kinda whack (around about the same time I also found out that like a 5 year old mattress can have something like 50 pounds of dust mite ->-bleeped-<- in it). So I splurged on this 100% organic, natural latex mattress with a 3" topper of the same material (dust mites can't live in the natural latex btw so if you're prone to allergies or just don't want to sleep on heaps of old dust mite ->-bleeped-<- and can afford it, go with the natural latex). I tell you, it's like sleeping on a magical marshmallow. I'd never give that thing up!! And amazingly, the very first night on it I had ZERO back pain in the morning. Worth every outrageous penny I paid for it.
I do have to share it with a snoring walrus though. Oh. Did I say walrus? I mean my lovable other half.