memory foam mattresses swear by Posturepedic.

There are cheaper brands out there, but supposedly they don't hold up.

Mammary foam....hmmmm...didnt know they come like that

Yes, i suggest you get/use a mattress lol

I've slept on one and it is incredibly comfortable.  But they are expensive and I'm not sure if one is necessary in a sex den.  My guess is the best thing to buy is a cheap throw-away.

i like them air mattresses...

Cheap

blow up easy-just like my blow up doll

fold up easy

Something cheap.  It needs to be firm or extra-firm so when one of us pushes down the other doesn't sink away.

No box springs, stay below the windowsill level

Hey lady! Actually, my old roommate used to tease me....

I could sleep in the gutter as long as I had a pillow.

I can sleep anywhere, and as far as fucking the same applies.

Bed, couch, standing, on the floor, WTF ever.

Actually don't care for rug burns, but they're a good trophy if only for a few days...

are hard to move around on.   I'd not go for big bucks...  just not necessary.  A decent headboard is a nice touch.  Footboards can get in the way.  Speaking of which...  king or at least queen.

I'd not go expensive with the mattress but don't go cheap either. It needs to be comfortable but the really high price ones aren't necessary. Firm is good. Queen or king size so there is plenty of room.
Headboard is good. No foot board and no side rails. The foot board and the wood side rails that come up high that some beds have get in the way and make it easy to bang your knees while engaged in certain positions. Ouch! You could hit your head on there too. It don't feel good, to put it in the vernacular.

Nobody's gonna sleep on it! lol!

Memory Foam Matress. I am not talking about Temperpedic, there are many very high quality Memory Foam matresses out there. I got one and I wouldn't trade it for anything. I use to get backache every morning for two to three hours, now I dont. You need to get 4" thich minimum, thicker the better. You can use it with or without a Box Spring.

Check out overstock.com

try the Simmons which are the ones used in Westin hotels....

Oh trust me, I'm a BIG mattress snob. If you want to opt for a cheap mattress, at the very least, order a memory foam topper. Also, I frequent Costco and Sam's Club.

Memory foam or pillow top is a bare requirement for myself.