Okay, so I made this "condition" up. But I'm telling you, if it were a real medical condition, I would have it.
I'm constantly dozing off during the day. While playing with my DS, watching T.V., surfing C.M, folding laundry. As soon as I get into a car my eyelids get heavy and my head starts to roll to one side (not so bad if I'm the passenger, kind of dangerous if I'm the one driving). Even if I'm not sleeping, most days I'm too tired to accomplish all that much. I try to get things done in the morning so that I can rest all afternoon.