When I was taking the antidepressants prescribed to me, I slept 16 hours a day, and wanted to sleep for the remaining 8 hours. For a perfectly understandable reason, I stopped taking them.
Added 2 minutes later
In any case, it's better than sleeping 3 hours and wanting (but not being able) to sleep for the rest of the time.
Where do we end up when we save the world?