I used to put a lot of time and energy into a bedtime ritual and sleep hygiene. Journaling, 20 minutes of a calming yoga sequence followed by some meditation, listening to calming music, drinking sleepytime tea, brushing my teeth, getting in some comfy jammies, spraying my pillow with lavender or peppermint oils. I've tried the weighted blankets and the stuffed animals and the melatonin and the kava kava.

I still slept/sleep 4 hours tops.

Now I just kinda say "screw it" and sleep whenever I can, wherever I can. If that's a couple hours on a couch at a friend's house, well, if I'm at their house they know me well enough to know I sleep weird hours and they'll turn the TV down low. If it's 45 minutes in the parking lot after my volunteer shift, OK (it's secluded and safe, no worries). Haven't gone into full blown psychosis/mania yet when I know I would if I tried just sticking to sleeping at night in my bed. In total I probably get 6 hours of sleep per 24 hour period doing this.