I have been taught my whole life that you get up, you make the bed. I seriously can't remember a day when I have left my bed unmade; it's just part of sliding out of bed in the morning (Yes, I have deep issues).
Anyway, just read an article in the past month that said you should NEVER make your bed right after you get out of it! You should go shower and let the sheets air and then come back and make the bed. It cuts down on dust mites and all those buggy things you see on TV specials that gross you out so badly you never want to get in bed again.