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

https://www.fightful.com/boxing/fight-week-the-sleep-problem-nobody-talks-about/

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