Fight week disrupts sleep for many fighters. Early Friday weigh-ins and doors...

https://future-wiki.win/index.php/What_Is_Sleep_Banking_and_Does_It_Help_Before_Fight_Week%3F

Fight week disrupts sleep for many fighters. Early Friday weigh-ins and doors opening at 6 pm mean nights stretched thin. Some spend six hours cramped in locker rooms, while others fight grogginess after waking up between 2 and 4 am