The key to falling asleep easily is to disidentify with any thought, belief, or action and therefore be free of the worries of the world. This is easier said than done because, as Eckhart Tolle puts it, we live in a world that is preoccupied with things. We are worried about the past and anxious of the future so that we are in this constant state of anxiety and stress. We need to take drugs to calm the mind so we can fall asleep.
Why not leave things and people alone? There is nothing you can add to the situation that will make it better. It IS already fine the way it is. If the universe allowed it to happen, why not accept it? If somebody did you wrong, let it go. Nothing is lost except the illusion that the mind wrapped around the situation. If you are in a dilemma because of a mistake you made, let it go. Blaming yourself won’t help the situation and it certainly won’t help you. It was meant to be, otherwise it would not have happened. If you are worried about not getting a job because you don’t have a degree, stop this thought right now. You are digging yourself into a hole that your mind will fill with negativity so you feel there is no way out. Clear your mind, go out there, give service to the world, and pretty soon you will have a job. If you serve the universe, the universe will serve you. When you are at one with the universe, you become one with the flow of life and things will come to you.
Practice surrendering to the present moment and free your mind of any identification. You will feel this sense of peace that makes you fall asleep instantly.