Fight week throws fighters into a weird rhythm: weigh-ins Friday morning, then...

https://wiki-dale.win/index.php/Why_Does_Hunger_Mess_Up_Sleep_During_a_Weight_Cut%3F

Fight week throws fighters into a weird rhythm: weigh-ins Friday morning, then a long wait before the doors open at 6 pm. Many find themselves wide awake at 2 or 4 am, or barely hitting the sack around 4 or 5 am