Expert insights on sleep cycles, circadian rhythms, and evidence-based strategies to optimize your rest and wake up feeling refreshed.
You're exhausted but your brain won't stop. Learn the 8 most common reasons you can't fall asleep — from caffeine and anxiety to conditioned arousal and circadian misalignment — and the evidence-based fixes for each.
Read ArticleThe physiological sigh, paradoxical intention, the military method — these are the fastest evidence-backed techniques to fall asleep quickly. Learn the neuroscience behind each and how to use them tonight.
Read ArticleVivid dreams aren't random noise — they're a window into your brain's overnight processing. Learn why some people dream more intensely, what triggers vivid dreams, and when they signal something worth paying attention to.
Read ArticleA well-timed nap can improve alertness by 100%, boost performance by 34%, and reduce heart disease risk by 37%. But napping wrong can destroy your nighttime sleep. Here is the science.
Read ArticleTeenagers are not lazy — they are biologically wired to sleep later. Understanding the science of adolescent sleep is the first step to actually helping teens sleep better.
Read ArticleSleep deprivation costs the US $411 billion per year in lost productivity. A well-rested person working 8 hours outperforms a sleep-deprived person working 10. Here is the science.
Read ArticleSleep scores from wearables, apps, and assessments measure different things. Learn what a sleep score actually measures, how to interpret yours, and how to improve it.
Read ArticleMaster sleep hygiene with this complete checklist. 20 evidence-based habits covering environment, routine, diet, and lifestyle—everything you need for consistently great sleep.
Read ArticleNot all sleep supplements work. Learn which supplements have scientific backing (melatonin, magnesium, glycine), optimal dosages, timing, and which ones to avoid.
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