I hear contradictory things about melatonin, but I think possibly it could be "cycled" - I don't know how many days to do it on and off though. I saw some recent research it can be used for some other conditions like I think migraines and cancer prevention
I've also heard some people speak in support of sleeping on bedding on the floor, or if off the ground as being something like that. example article: https://www.healthline.com/health/sleeping-on-the-floor
exercise during the day might help sleep at night, like some good lifting
taking some time to relax and gently ease in to sleep before sleeping, like an hour of doing nothing or little, can seem helpful too
I've also heard some people speak in support of sleeping on bedding on the floor, or if off the ground as being something like that. example article: https://www.healthline.com/health/sleeping-on-the-floor
exercise during the day might help sleep at night, like some good lifting
taking some time to relax and gently ease in to sleep before sleeping, like an hour of doing nothing or little, can seem helpful too