If you want to avoid pharmaceuticals, some other insomnia remedies (some work for anxiety too):
Calming herbs like hops, valerian, lemon balm, chamomile, lavender.
Hot baths/showers.
Kava-kava root.
Cannabis indica.
Exercising during the evening, before you get ready for bed. (allow a cooldown period)
White noise, or something like
rainy mood
Melatonin (and naturally enhancing melatonin production by avoiding blue/white light at night)
Avoid stimulants like methylpheindate, amphetamine, guarana, caffeine in the afternoon
Theanine (amino acid)
A glass of red wine
Don't go to bed hungry.
Make sure your pillow is in good shape - if it's too squishy your neck may not be getting enough support.
Multivitamins and minerals for good measure.