Healthy sleep consists of distinct stages. We break down the defining traits of each stage and how they differ from one another.| Sleep Foundation
Cognitive behavioral therapy for insomnia (CBT-I) is a first-line treatment of chronic insomnia. Learn more about CBT-I in our guide.| Sleep Foundation
Insomnia is a sleep disorder that affects many people. Learn about symptoms, causes, and treatments.| Sleep Foundation
Our editorial policy is the driving force of our high standard for quality. Learn about the methods we employ to produce accurate, unbiased content| Sleep Foundation
Many people rely on alcohol to help them fall asleep, but their sleep quality may suffer in the long run. Learn more about how alcohol affects sleep.| Sleep Foundation
Anxiety is frequently connected to sleeping problems. Excess worry and fear make it harder to fall asleep and stay asleep through the night.| Sleep Foundation
Discover the science behind why we sleep better within a certain temperature range, and get advice for optimizing your bedroom temperature at night.| Sleep Foundation
Looking for ways to sleep better? Improving sleep hygiene can make your habits, routines, & environment more conducive to consistent and restorative sleep.| Sleep Foundation
Sleep is essential, but how much sleep do we really need? Learn about how many hours of sleep kids and adults need and ready useful tips for how to get them.| Sleep Foundation