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

https://www.oscarbookmarks.win/fight-week-can-be-brutal-on-sleep-between-friday-morning-weigh-ins-six-hours

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