Sleeping on a mattress directly onto the carpeted floor?
I have just put up a metal bunk bed for my sons - my youngest (10) is going in the top bunk and my other son (19) in the bottom bunk (extremely small room, can only fit one bedframe in there). My older son is 6ft tall and sitting in the bottom bunk, his head hits the mattress, etc, above (the ceiling is also low, so if he sits in the top bunk he has the same problem). He has asked me if I can remove the metal bed slats (which slot into the frame) and just place his mattress directly onto the floor (carpeted and with underlay), however, I am worried that the carpet will be ruined and that the mattress will not be aired out. Does anybody have any suggestions as to how I could possibly put together a slightly raised (a couple of inches) wooden frame/few slats to place on the carpet to which I could put the mattress on top of - what sort of wood would I use, etc - plywood? Thank you.