This.
Also, I'm super picky about the flat sheet and such being tucked into the foot of the bed. I can't stand when the flat sheet/comforter pulls up and my feet stick out of the bottom. I'm so particular about the sheets, I'll make the bed at night just before crawling in to go to sleep.
My wife is the absolute opposite. She gets in the bed and twirls around like an alligator to pull the sheets to her and almost cocoon herself in the sheets, so I usually lose the battle =(.