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What to Know About an At-Home Sleep Test
Here’s how to know if you have sleep apnea, without leaving the comfort of home.

Good Sleep May Be All in Your Head
Researchers have identified cells in the brains of mice that may ultimately help humans sleep better.

The Future of Sleep Studies
Current sleep studies take place in a lab, but the future of sleep research looks much different, says sleep expert Dr. Charlene Gamaldo.

Do Sleep Trackers Really Work?
Activity trackers are all the rage, but are sleep tracking devices effective? Johns Hopkins sleep specialist Alan Schwartz, M.D., weighs in.

Melatonin for Sleep: Does It Work?
Here’s what you need to know about your body’s natural melatonin production and melatonin sleep aids.

Sleep and Aging: What's Normal?
Aging itself doesn't seem to account for sleep complaints in older adults -- but maybe it should. Find out how sleep can change with age.

The Science of Sleep: Understanding What Happens When You Sleep
What exactly does sleep do for your body and mind? Here’s what researchers know about the science of sleep—including the stages of sleep, your biological clock, health connections and more.

What Happens in a Sleep Study?
What exactly happens during a sleep study like a polysomnogram, and what can sleep experts learn from monitoring? Here are answers to the four most common sleep-lab questions.