When I was hyper, I couldn’t sleep because I was so wound up I couldn’t relax. I was too hot, my heart was pounding, my thoughts were racing.
When hypo, I was sleepy but my sleep was of poor quality and I woke up often. I had killer cramps in various muscles, especially my calves, and whatever I was lying on would “go to sleep” (at least some of my body parts were sleeping! LOL). As I dropped off to sleep, I would feel that I wouldn’t breathe unless I actively concentrated on the process. This would of course wake me up. I found that I could only sleep sitting up, not a restful position. There were also lots of nocturnal trips to the bathroom.
The experiences were different, but both lousy.
Elisa