I liked prednisone at first ... it was like I didn't have any need to sleep anymore. Until I had not slept well for days and days on end that I felt like all I wanted to do was sleep.

The circadian rhythm of cortisol which controls our sleep-wake cycle is severely impacted by taking prednisone.
https://www.medicalnewstoday.com/articles/does-prednisone-cause-insomnia#link
and
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8813037/