Nothing. It's a simple breathing exercise. You just have to do it four times after you get to your bed. You will see how you get hijacked to the world of peaceful and blissful sleep from your chronic insomniac troubles from today. It's very very simple. It's called 4-7-8 technique. All you have to do is... you have to inhale for four seconds silently, hold your breath for seven seconds and exhale it loudly for eight seconds. You will get a fantastic yawn before the fourth time. When you enjoy that first yawn, you will thank Dr. Weil and me with an eternal indebtedness. I think that thankfulness of yours is worth a thousand years of living on this planet!!! It really worked for me. I am sure it will work for you as well. It should. Even if it doesn't, don't worry. It is said that it starts working over time. As they say, practice will make you perfect (in sleeping only!). If it doesn't work even then, I can only feel so sorry for you!!! If it works and you feel like jumping up and down like I did after the first blissful night, just come here and drop a comment below this post. I will have a great deal of satisfaction, thinking that even I have changed many lives in my life, leading to a peaceful sleep tomorrow even without 4-7-8. Isn't that great?!
If you are someone who doesn't like shortcuts to attain anything including peaceful sleep, please excuse me this time. I will come back to you some other time with techniques that can impress you!!!