Sleep is a miracle given to us by nature. But we often treat it with disdain, and some even with contempt. Man is the only living creature who sacrifices his sleep for the sake of achieving some high goals. However, we do not understand that we will have to pay for this with insomnia and other health problems. Only when a person has lost sleep does he understand what he has lost in life. The next stage begins - the constant struggle for sleep. But the problem is that in trying to improve it, a person makes mistakes that further aggravate the problem. As in the famous expression: “There will be no war, but there will be such a struggle for peace that no stone will be left unturned.” From the book you will learn about how important sleep is and how it affects our health. The authors provide simple and effective tips on lifestyle, sleep and bedroom hygiene that will allow you to maintain or restore healthy sleep. Relaxation techniques are described to help combat stress as one of the main causes of insomnia. Information is provided about cognitive behavioral therapy for insomnia, the most effective method of treating this sleep disorder. Effective recommendations are offered for maintaining and restoring sleep during a shift schedule, air travel and in other life situations. The book also describes other most common sleep disorders: snoring and obstructive sleep apnea syndrome, restless legs syndrome, sleep paralysis... Recommendations are given on how to suspect these diseases, what you can do on your own to eliminate them and when you need to see a doctor. The publishing design is preserved in PDF A4 format.