Fight week throws off more than just routines. Between Friday morning weigh-ins...

https://wiki-aero.win/index.php/Does_Dehydration_Make_It_Harder_to_Fall_Asleep%3F_A_Fight_Week_Sleep_Breakdown

Fight week throws off more than just routines. Between Friday morning weigh-ins and locked doors at 6 pm, fighters spend six hours cramped in a locker room. Add in waking up at 2 or 4 am, and it’s clear sleep takes a hit