why many people suffer from sleep deprivation without knowing it, and offer practical tips for getting better sleep and having more energy.

Plain and simple, the purpose of this guide is to explain the science of how to sleep better. You can click the links below to jump to a particular section or simply scroll down to read everything. At the end of this page, you’ll find a complete list of all the articles I have written on sleep.

I. The Science of Sleep

• The Purpose of Sleep

• How Much Sleep Do You Need?

• The Cost of Sleep Deprivation

• The Theory of Cumulative Stress

• Ok, But Can You Catch Up on Sleep?

II. How Sleep Works

• The Sleep-Wake Cycle

• Age-Related Sleep Changes

• The Circadian Rhythm

• The 2-Process Model of Sleep Regulation

III. How to Sleep Better

• How to Fall Asleep Fast

• How to Improve Sleep Quality and Duration

• Daily Habits for Better Sleep

• Natural Sleep Aids