A few weeks back, my Macbook suddenly failed to fall asleep. Well, not completely. It still falls asleep when I close it but, as I have to keep it open overnight for my morning alarm to work, it's been causing me grief. I manually put it to sleep but as soon as the fans slow down completely, it just wakes itself up again.It stays extremely hot all night; the fans run at full blast. I've tried changing the settings on my system preferences but that doesn't seem to work either. So if anyone has any sort of technical sleeping pills for my Macbook, I will be forever grateful.