Sleep Blog
Evidence-based articles on sleep problems, sleep science and the ingredients used in sleep supplements. Every article cites its sources and tells you when to see a doctor instead of reaching for a supplement.
Do You Sleep Better in the Cold? The Science of Temperature and Sleep
Do you sleep better in the cold? Yes, within limits. Learn the best bedroom temperature (60-67°F), why your body cools at night, and the socks trick.
Does 5-HTP Help You Sleep? What the Evidence Actually Shows
Does 5-HTP help you sleep? What the studies show, 50-300 mg dosing, 5-HTP vs melatonin, side effects, and the SSRI serotonin syndrome warning.
How Much Sleep Do You Need by Age? The Complete Chart
How much sleep do you need by age? The CDC/AASM chart from newborns to 65+, plus sleep cycles, sleep debt, and why consistency beats total hours.
Is 6 Hours of Sleep Enough? An Honest Look at 2 to 8 Hours
Is 6 hours of sleep enough? For most adults, no. See what 2, 4, 5, 6, 7, and 8 hours actually do to your brain and body, and why 'short sleepers' are rare.
Why Am I Tired After 7 Hours of Sleep? 9 Causes and How to Fix Them
Why am I tired after 7 hours of sleep? Nine causes, from sleep apnea and alcohol to too much melatonin, red flags to see a doctor, and a 7-day fix plan.
Why Can't You Sleep? 9 Common Causes (and How to Fix Each One)
Why can't you sleep even when you're tired? Nine common causes, from cortisol and caffeine timing to low magnesium, with a practical fix for each one.
Why Do I Wake Up at 3am? 8 Causes and What to Do About It
Why do I wake up at 3am every night? Eight common causes, from cortisol and alcohol to blood sugar dips, plus a step-by-step plan to fall back asleep fast.