Want to learn about shift work disorder? Our guide discusses the defining traits of shift work sleep disorder, how it disrupts sleep & complications.| Sleep Foundation
Over the past decade, we've tested more than 2,000 mattresses in our Seattle-based lab. Find out which ones fared the best and discover your perfect mattress.| 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
Sleep apnea involves disrupted breathing during sleep. Learn about the types of sleep apnea as well as potential symptoms, causes, diagnosis, and treatment.| 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 use electronics before bedtime, but this may have a negative effect on sleep. Learn how blue light disrupts sleep and how to reduce its effects.| Sleep Foundation
Sleep and ADHD have a bidirectional relationship. Learn how ADHD can cause insomnia, and how improving sleep may improve ADHD symptoms.| 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
Circadian rhythms are natural, 24-hour patterns that play a vital role in the sleep-wake cycle. Learn more about how they work and how to keep them aligned.| Sleep Foundation
Light and sleep are closely intertwined. Learn about how different types of light exposure affects circadian rhythm, melatonin, and overall sleep quality.| Sleep Foundation