Caveat: Purely anecdotal. I’ve tried just about every prescription and supplement known to man, mostly in an effort to tame depression and sleep issues. These are the only things I’ve tried that have consistently worked for me:
Tart cherry juice has helped me sleep. Ambien fucked me up. If I’m desperate for sleep I take one children’s Benadryl, but it’s only good very infrequently.
Fish oil has helped my overall health (take in the AM with food, it can cause regurgitation).
You’ve probably heard all this already, but just general advice for folks experiencing sleep loss and/or depression:
Above all, diet, outdoor exercise, and sleep routine have been the most influential things I’ve changed to help myself.
Exercise outside every single day (weather permitting), at least 30 minutes, early in the day if possible.
Avoid sugar and alcohol. Eat more leafy greens, fish, and whole fruit. Superfoods that I feel have improved my mental health: spinach, blueberries, flax seeds, salmon
Block out 10 (yes, 10) hours of time for sleep each night. Spend those 10 hours in a cool, quiet, dark room in a comfortable bed with a comfortable pillow. Don’t drink anything starting 2 hours before bedtime. No caffeine after 3pm.
Spend time (even if it’s just a few seconds) every day mentally listing good things in your life.
Good luck.