Download or read book The Ultimate Sleep Guide EBook written by Michael William and published by Independently Published. This book was released on 2021-05 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sleep is essential to a person's health and well-being, according to the National Sleep Foundation (NSF). Sleep is just as important as food and air. It is a necessary function to support all human life, growth, development and brain function. Sleep keeps your mind alert and calm. It helps you with optimal daily functioning. If you wake up tired after eight hours or more of sleep, you don't need more sleep. Better sleep quality is needed instead of more sleep. Deep sleep is the main type of sleep our body needs.