Fight week messes with more than just nerves. Fighters often hit the sack at 4...

https://sierra-wiki.win/index.php/Why_Does_Hunger_Mess_Up_Sleep_During_a_Weight_Cut%3F

Fight week messes with more than just nerves. Fighters often hit the sack at 4 or 5 am, then wake around 2 or 4 am, caught in a cycle that’s tough to break