Sleep Blog
Practical, science-backed guides to sleeping better.
How Long Should It Take to Fall Asleep? (Sleep Latency Explained)
The average person takes about 10–20 minutes to fall asleep. Here's what sleep latency reveals about your rest, what slows it down, and how to fall asleep faster.
REM vs. Deep Sleep: What's the Difference (and Why Both Matter)
Deep sleep repairs your body; REM sleep restores your mind. Here's how the two stages differ, what each one does for you, and how to get enough of both.
Sleep Debt: What It Is and How to Actually Recover
Sleep debt is the running gap between the rest you need and the rest you get. Here's how it builds, what it costs you, and the right way to pay it back.
How to Fix Your Sleep Schedule (Without Wrecking a Weekend)
A practical, step-by-step plan to reset a broken sleep schedule using consistent wake times, light, and 90-minute cycle timing—no all-nighters required.
The 10-Point Sleep Hygiene Checklist That Actually Works
Evidence-backed sleep hygiene habits ranked by impact: consistent wake times, light exposure, caffeine curfews, and the bedroom setup that helps you sleep deeper.
What Time Should I Go to Bed? A Simple Way to Decide
The right bedtime isn't a fixed number—it works backward from when you need to wake up, in 90-minute sleep cycles. Here's how to find yours in seconds.
The Ultimate Napping Guide: How to Nap Without Ruining Your Night
Power naps, coffee naps, and full-cycle naps: what science says about the perfect nap length, the best time of day, and the mistakes that leave you groggier.
Why You Wake Up Tired (Even After 8 Hours of Sleep)
Slept a full night but still feel exhausted? Here are the seven most common reasons, from sleep inertia and mistimed alarms to sleep debt and apnea.
How Much Sleep Do You Really Need? A Guide by Age
From newborns to retirees, sleep needs change throughout life. Here's what the National Sleep Foundation recommends, and how to tell if you're getting enough.
Sleep Cycles Explained: What Happens While You Sleep
A plain-English guide to the stages of sleep (light, deep, and REM), why each one matters, and how 90-minute cycles shape how rested you feel.