Sleep Science Blog
Evidence-based articles to help you understand and improve your sleep.
How to Fall Asleep Fast: 12 Science-Backed Methods That Actually Work
Struggling to fall asleep? Learn 12 proven techniques to fall asleep faster, from the military sleep method to 4-7-8 breathing, cognitive shuffling, and environment optimization.
How Much REM Sleep Do You Need? A Complete Guide to Dream Sleep
Learn how much REM sleep you need by age, what happens during REM sleep, and 8 proven ways to get more REM sleep each night for better memory and mood.
How to Get More Deep Sleep: 10 Evidence-Based Strategies
Not getting enough deep sleep? Learn 10 proven strategies to increase your deep sleep, from exercise timing to temperature optimization and supplement research.
How Much Sleep Do Women Need? A Guide to Women's Sleep at Every Stage
Women need 7-9 hours of sleep, but hormonal changes across the menstrual cycle, pregnancy, and menopause create unique sleep challenges. Learn what science says about women's sleep needs.
Biphasic and Polyphasic Sleep: Can You Hack Your Sleep Schedule?
Everything you need to know about biphasic and polyphasic sleep schedules, from the siesta to Uberman. Learn what science says about splitting your sleep into multiple sessions.
How to Fix Your Sleep Schedule: A Science-Backed Guide to Resetting Your Internal Clock
Learn how to fix your sleep schedule with proven strategies rooted in circadian rhythm science. Covers light exposure, melatonin timing, consistency habits, and practical tools to help you fall asleep and wake up on time.
Why Do I Wake Up Tired? 9 Reasons You Feel Groggy Every Morning
Discover the science behind why you wake up tired even after a full night of sleep. Learn about sleep inertia, sleep cycles, sleep debt, and how to wake up feeling refreshed.
How Much Deep Sleep Do You Need? A Complete Guide by Age
Learn how much deep sleep you really need, why it matters for recovery and memory, how age affects it, and science-backed tips to get more restorative slow-wave sleep every night.