Sleep is a complex and dynamic biological process that still isn’t fully understood. Learn about how sleep works and why it’s vital for overall health.| 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
Obstructive sleep apnea is a condition marked by abnormal nighttime breathing. Learn more about the symptoms, causes, and treatments of obstructive sleep apnea.| 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
Looking for ways to sleep better? We share the steps you can take to improve sleep hygiene and get more restful sleep each night.| Sleep Foundation