Mattress Forum

Blue Print: 

Bottom Layer: 6inches LuxHQ from foambymail http://www.foamdistributing.com/LHQ_2/lux-hq-foam-mattress.html

Middle Layer: 4inch/4lb  Aerus topper from sleepwarehouse.com http://www.sleepwarehouse.com/aerus4lbmemoryfoammattresstopper.aspx

Top Layer: 4inch/5lb  Sensus topper from sleepwarehouse.com http://www.sleepwarehouse.com/sensus5lbmemoryfoammattresstopper.aspx

My plan is to place them on the floor until I can grab a platform bed frame from craigslist or somewhere for cheap. Now my place gets dusty and has carpet so my thinking is to wrap it in some sort of cover either individually or altogether as to avoid any stains, water damage( I eat and drink in my room and theres a cat living here) etc. The idea is to cover the foam once to protect it then again so that the sheets won't slip off (assuming the base cover is slippery) and then put sheets on that allow a cool and comfortable surface both in the winter and during the summer. 

What do you guy's think? Cheaper way? easier way? Firmer base foam?  (keep in mind my budget is limited and I'd have to buy these pieces one at a time over the course of a couple of months most likely. I'm a college student.)