I've been in this cycle before. I still almost fall into it naturally, but less so than when I was in my early twenties. My experience was that it isn't sustai

I've been in this cycle before. I still almost fall into it naturally, but less so than when I was in my early twenties. My experience was that it isn't sustainable, the day after you stay up all night just gets worse and worse the longer you are on that schedule. After a short time, for me, that day was so unproductive that it more than destroyed any gains made in those extra hours or the encouraging "reset" to my ability to sleep at regular hours. I have to admit that the early night and long sleep after that day was the best sleep I could get at the time. The rest of it was pretty shitty, I slept like a dead person and woke groggy. Good sleep habits and a regular schedule have a domino effect, improving all sorts of stuff, definitely worth trying to stay off that sleep 2, stay up for 1 cycle in my experience.