For the heavier guys here with back issues

[Bulgarian_enforcer]

get gh. sleep on sofa. 

[obsidian]

I'll second the floor/futon option. Over the years my mattress has been getting thinner and thinner, and when I nap during the day it's directly on the floor. Having to sleep in hotels I often find their beds much too soft, so I sleep on the floor in hotels too, just on a duvet spread out.

Only thing I need is a thin but stiff pillow, or a makeshift neck roll from a large towel.

FYI: it did hurt my shoulders and hips initially, by stretching them out to what should be their natural position. Start slow, even 30 min. before sleeping in a real bed worked for me. Then just build from there

I've done this but sleeping on your side can be brutal on the hips. You gotta put some padding down on the floor at least - a few blankets etc.

[obsidian]

Sleep with a pillow between your legs. If you curl up like a baby you should not be getting a sore back sleeping on a mattress.

[phreak]

I've done this but sleeping on your side can be brutal on the hips. You gotta put some padding down on the floor at least - a few blankets etc.

Actually I only sleep on my back now. I slept mostly on my side when on a mattress, but my neck feels much better when I don't do that. But yes, sleeping on my side on the floor is not an option.

[Irongrip400]

Actually I only sleep on my back now. I slept mostly on my side when on a mattress, but my neck feels much better when I don't do that. But yes, sleeping on my side on the floor is not an option.

I sleep on my stomach. Sleeping on my back feels weird and I feel the need to stare at the ceiling. At least with my face turned towards the pillow, the extra CO2 will help me pass out quicker. My wife says sleeping on your face gives you wrinkles though. 

[residue]

What's the best mattress? I have a kingsdown and a tempurpedic that I bought, and neither are doing my back any good. Any of you guys with lower back issues find a mattress that lets you have a great night sleep?

get this and sleep in it

https://www.amazon.com/dp/B01E3UJKXK/ref=asc_df_B01E3UJKXK5126871/?tag=hyprod-20&creative=394997&creativeASIN=B01E3UJKXK&linkCode=df0&hvadid=167126942833&hvpos=1o1&hvnetw=g&hvrand=15715903170627434465&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9004331&hvtargid=pla-307243764942

[sync pulse]

I've done this but sleeping on your side can be brutal on the hips.
You gotta put some padding down on the floor at least
- a few blankets etc.

Well yes...A Futon...Most don't maintain one properly.  You have to occasionally put it in the sun and beat it to keep the stuffing distibuted.