Jul 25, 2025 · Healthy sleep consists of four stages. We break down the traits of both REM and NREM stages, how they differ, and how to get better sleep.

Jan 16, 2024 · Sleep-related disorders. Sleep apnea causes you to stop breathing at times during the night, disrupting your sleep. Restless legs syndrome causes a strong uncomfortable urge …

Jul 10, 2025 · We tend to think of sleep as a time when the mind and body shut down. However, sleep involves many important and necessary processes.

Jan 31, 2025 · Set aside no more than eight hours for sleep. The recommended amount of sleep for a healthy adult is at least seven hours. Most people don't need more than eight hours in …

Jul 11, 2025 · Sleep is essential, but how much sleep do we really need? Learn about how many hours of sleep kids and adults need and read useful tips for better sleep.

Learn the possible benefits, risks and side effects of prescription sleeping pills. For long-term insomnia, behavior changes generally work best.

Oct 31, 2025 · Looking for ways to sleep better? We share the steps you can take to improve sleep hygiene and get more restful sleep each night.

Jul 14, 2023 · Obstructive sleep apnea is the most common sleep-related breathing disorder. People with obstructive sleep apnea repeatedly stop and start breathing while they sleep. …

Apr 6, 2023 · Overview Sleep apnea is a potentially serious sleep disorder in which breathing repeatedly stops and starts. If you snore loudly and feel tired even after a full night's sleep, you …

Jul 10, 2025 · Cognitive behavioral therapy for insomnia (CBT-I) is a first-line treatment of chronic insomnia. Learn more about CBT-I in our guide.