Dreams are an integral part of sleep. Learn about when we dream, the types of dreams, and the competing theories for why we dream in the first place.| Sleep Foundation
Naps are a common practice around the world to restore energy during the day. Learn about the benefits of napping and tips for getting a good daytime snooze.| 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
Want to learn how to create a bedroom environment for good sleep? Our guide includes room temperature, bedding options, sound-proofing tips, & more.| Sleep Foundation
Drinking caffeine too close to bedtime can keep you awake. Learn why this happens and what other effects caffeine may be having on your 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