Anyone got good research in this regard?
I'm moving out of my dorm and into a nice house with a backyard soon, so I'm able to get all my own furniture now. I like sleeping on firm surfaces. Some of the best sleep I got was in a sleeping bag on rocks in the wilderness. I can't stand those squishy sink-in feeling beds most people have. I feel like I need some sort of bed just for... bed's sake. Was thinking of an actual loft with a desk underneath. I also like being cool/cold.
Which type of mattress is the best? None at all? I understand the personal comfort factor, just looking for more actual research and which would be best for my health long-term.