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More in Sleep
How Many Hours of Sleep Should an 18 Year Old Get?
At 18, you’re caught between teen and adult sleep needs. Here’s how many hours you actually need and why it’s harder to get them at this age.
What Can I Take to Help Me Fall Asleep Faster?
From melatonin to magnesium, here’s what the evidence says about sleep aids and how to choose the right one for your situation.
Why Am I Sleeping on My Stomach All of a Sudden?
Suddenly sleeping on your stomach? Pain, stress, digestion, or even your mattress may be behind the shift—and what to do about it.
What Happens When You Wake Up at 3am: Body and Mind
Waking at 3am isn’t random. Your body and brain are in a specific biological state that explains the groggy feeling and anxious thoughts.
How Many Hours Are You Supposed to Be Awake?
Most adults do well with 16 hours awake, but your ideal number depends on age, genetics, and how your brain manages sleep pressure.
Why Should You Not Sleep on Your Left Side?
Left-side sleeping has real drawbacks for some people, from heart discomfort to kidney stones, but it’s not all bad news either.
Why Can’t You Go Back to Sleep After Waking Up?
Waking up at 3am and can’t get back to sleep? Body temperature, alert brain states, and a few common habits are usually to blame.
How to Talk to Your Doctor About Insomnia
Get more from your doctor’s visit by knowing what to track, what to say, and what questions to ask about your sleep problems.
What Position Are You Supposed to Sleep In?
Side sleeping is generally best for most people, but your ideal position depends on your health needs. Here’s what the research says.
Is It Better to Sleep on a Firm or Soft Mattress?
The best mattress firmness depends on your sleep position and body weight, not a one-size-fits-all rule. Here’s what the research actually shows.
What Is It Called When You Can Fall Asleep Anywhere?
Falling asleep anywhere isn’t just tiredness — it could be narcolepsy. Learn what it is, how it’s diagnosed, and what living with it looks like.
How Much Deep Sleep Should You Get Every Night?
Most adults need 1–2 hours of deep sleep per night. Learn what affects it, why it matters, and simple ways to get more of it.
How to Get Better REM and Deep Sleep Tonight
Small daily habits like consistent sleep times, a cooler room, and cutting caffeine can meaningfully improve your REM and deep sleep quality.
Is It Bad to Sleep After Drinking Coffee?
Caffeine can disrupt sleep even when you fall asleep easily. Learn how long it stays in your system and why your genes affect how much it impacts you.