interesting... i have often had this problem, i think its because of the fact, i'd rather sleep during the day during night.. so i'm an insomniac at night, and almost a narcoleptic during the day (well not that bad, but i get sleep attacks once in awile).

Many times i'll WILD and be in the state, but will be to mentally tired to try anything.. so i spend my time in either darkness or light until i hit normal sleep.