Haiku for the week

Too many late nights,
Early starts at work fatigue:
Afternoon sleeping.

It's become a worrying pattern over the last two or three weeks: I am strangely finding it much easier to sleep during the day than in the early hours of the morning; far too frequently I am tumbling back into bed at 2pm or 3pm or 4pm and immediately lapsing into a blissful coma for two or three hours - the kind of sleep where you feel you never want to wake up, and it requires an enormous effort to drag yourself out of bed again.. I am beginning to fret that there is something amiss with my health.