Fight week throws sleep out the window. Boxers often hit the sack around 4...

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

Fight week throws sleep out the window. Boxers often hit the sack around 4 a.m., wake at 2-4 a.m., then spend six hours locked in a cramped locker room before Friday’s early weigh-ins