Fight week can be brutal on sleep. Between Friday morning weigh-ins, six hours...

https://wiki-coast.win/index.php/Fight_Week_Checklist:_Sleep_Banking,_Light_Management,_and_Locker_Room_Plan

Fight week can be brutal on sleep. Between Friday morning weigh-ins, six hours locked in the locker room, and doors opening at 6:00 pm, fighters often hit the hay around 4 or 5 am