TWIN XL 3-inch tempur-pedic mattress topper:
http://www.bedbathandbeyond.com/store/product/tempur-pedic-reg-tempur-topper-supreme-3-inch-mattress-topper/207855?Keyword=temperpedic

2x TWIN XL Ultrasoft Comfort Flannel Sheets,
one in "natural" (like a tan/egg-white kind of thing):
http://www.llbean.com/llb/shop/86878?feat=flannel%20sheets-SR0&page=ultrasoft-comfort-flannel-sheet-set
and one in a blue/natural checker, kind of like this but with bigger squares:
http://www.llbean.com/llb/shop/88851?feat=flannel%20sheets-SR0&page=ultrasoft-comfort-flannel-sheet-fitted-gingham&attrValue_0=Mariner%20Blue

Mattress Cover/Encasement:
http://www.target.com/p/protect-a-bed-buglock-bed-bug-proof-mattress-encasement/-/A-15335872#prodSlot=large_1_7

People in my dorm last year knew me as the guy with comfiest bed. I am entirely confident this is the best set-up you can have for your college mattress...I would be keeping them if I didn't buy a new-sized bed this year (and yes, I'm buying the same exact setup in the different size). It's not cheap, but you'll see very quickly that it's worth the investment.

Stored in summer storage with protective plastic sealing wrap, and used last year with a mattress cover so it is very clean. Note this does not come with a comforter, top sheet, or pillow.

I will be on a camping trip until the 19th but will respond after then.

Asking $165 for all