I work 2nd and 3rd shift... One piece of advice... Blackout curtains make a huuuuge difference. Definitely get some I'd you haven't already. Until you can get really used to sleeping during the day, any light will make it hard to sleep. (And even once you do get used to it, light still makes your sleep less restful.) Chamomile tea is relaxing, too.
I tried covering the Windows better today to block out more light and I actually slept longer today. Hopefully that's all I needed because i'd like to avoid any medication if possible.
Unisom (make sure it's doxylamine succinate ) not the other one. Its a pregnancy class A. I took.it for my nausea cuz I would get sick before bed
Sleep masks are great! But make sure its a fabric and size that fits on your face comfortably. Has work for my insomnia for years cause I got sick of taking sleep meds.