Sleep. If I'm feeling well enough, I'll spend my waking moments in bed or on the couch reading and watching TV. If I'm feeling particularly good, I might play a videogame, but then if I'm well enough to do that, I'm well enough to go to class (or work if I happen to have a job.) Now if I have a mild head cold and it's the weekend, sure, I'll just laze around, consume pretty much any media I can, and take a nap if I get tired. But if it's that mild and I have work or class, I take some cold meds and soldier through it.