How can I stop randomly waking up in the middle of the night and what are there ways to easily fall asleep again?

I have tried melatonin supplements when I needed them and they worked wonders, for me. Always ask your doctor before trying anything like this to see if it suits you.

Before you go to sleep, make sure you have secured a cool, dark place to rest. Try to turn off all electronics well before bed time. Drink some warm decaf tea-but only if you don’t wake up more when you do! If you wake up in the middle of the night, don’t turn on the tv or try to distract yourself with your phone-it will only keep you up longer. You can also try meditating and deep breathing. Focus on counting your breaths-inhale to the count of 4 seconds, hold for 4 seconds, exhale 6 seconds, hold 4 at the bottom and then inhale for 4 again! Doing this several rounds may help to relax your breathing pattern and help you fall back to sleep