Odd question. Anyone gone from a boxspring to no boxspring and noticed a difference? I'm looking at a good deal on a sweeeeet bedframe, but it just has room for the mattress, no boxspring. Obviously it has built in support stucture, but I don't know if it's the same. After all, the boxspring is flat but it's better than the floorl.

It's a really good boxspring, so I don't want to get rid of it if I'll lose support. I'd give it away or something, can't really shove that big thing in the closet.
Anyone know?