CleverRaven/Cataclysm-DDA — pull request #4966 by KA101 (2013-12-09 10:42:57+00:00)
Title: Get Some Sleep

Adds a periodic nagging debuff if you go into Dead Tired, which lasts longer as you stay up. Starts at 1 minutes of every 5 at Dead Tired, goes to 3/5 at Exhausted, and at 800 (sleep-anywhere!) is quasi-permanent.

And now I'mma take my own advice, I think ;-)