Alarmy Article

Sleep & Habit Guide for a Better Morning

Apple Watch on a bedside table displaying a sleep stage summary showing what is core sleep and its percentage
2026-04-01
7 minutes
What Is Core Sleep? The Sleep Stage Your Watch Tracks
Core sleep is the N2 NREM stage your Apple Watch tracks — learn what it means, how much you need, and how to support it for better rest.
A neatly made bed showcasing the scandinavian sleep method with two separate duvets side by side
2026-03-31
6 minutes
Scandinavian Sleep Method: Why Couples Use Two Duvets
Discover the Scandinavian sleep method — using two separate duvets on one bed. Learn why couples sleep better apart under covers, plus sizing and fabric tips.
Sunlit bedroom at dawn with an alarm clock on the nightstand — a peaceful morning scene representing how much sleep do you need
2026-03-30
6 minutes
How Much Sleep Do You Need? Your Ideal Hours by Age
Discover how much sleep you need by age, why the same 7 hours can feel different, and a 2-week method to find your personal optimal duration.
Alarm clock on a bedside table showing the gap between weekday and weekend wake-up times, visualizing social jet lag
2026-03-30
6 minutes
Social Jet Lag: Why Sleeping In on Weekends Backfires
Social jet lag — the gap between weekend and weekday sleep — causes chronic fatigue and health risks. Learn 5 steps to fix your sleep schedule for good.
Bedroom optimized for sleep environment optimization — blackout curtains, thermometer, and white noise machine
2026-03-23
6 minutes
Sleep Environment Checklist: Temperature, Light & Noise (2026)
Optimize your sleep environment with this free checklist covering bedroom temperature, light, and noise. Learn research-backed fixes you can try tonight.
A desk with open textbooks at night symbolizing the choice between sleep before exams and late-night studying
2026-03-18
6 minutes
Sleep Before Exams: Why All-Nighter Studying Backfires
All-nighter studying hurts your grades more than it helps. Learn why sleep before exams boosts memory and how to build a student sleep schedule that works.
A person sleeping peacefully under moonlight and starry window, evoking why do we dream
2026-03-17
5 minutes
Why Do We Dream? The Science of Nightmares and Lucid Dreams
Your brain stays busy all night. Discover why we dream, what causes nightmares, what recurring dreams signal, and how lucid dreaming works.
Melatonin supplement bottle on a nightstand with soft bedside lighting for better sleep
2026-03-16
6 minutes
Melatonin Supplement for Sleep: Why Less Is More
Most melatonin supplements contain 10x the effective dose. Learn the right melatonin dosage, timing, and safety tips for better sleep.
A coffee cup and alarm clock on a nightstand representing caffeine and sleep quality
2026-03-12
5 minutes
Caffeine and Sleep: What Time Should You Stop Drinking Coffee?
Learn how caffeine affects sleep using the half-life concept, and find your personal caffeine cutoff time. A practical guide to enjoying coffee without wrecking your rest.
A restless sleeper tangled in sheets representing sleep talking causes and nighttime disturbances
2026-03-12
6 minutes
Sleep Talking Causes and 4 Other Strange Sleep Behaviors Explained
Discover why sleep talking, teeth grinding, and hypnic jerks happen while you sleep. Learn which nighttime behaviors are normal and when to see a doctor.
A person stretching on a balcony at sunrise as part of a morning exercise sleep improvement routine
2026-03-10
6 minutes
Morning Exercise and Sleep: Why 10 Min Changes Everything
Morning exercise improves sleep quality through body temperature and cortisol science. Discover simple routines under 10 minutes.
A dimly lit bedroom with blackout curtains and an alarm clock on the nightstand for shift work sleep
2026-03-09
7 minutes
Shift Work Sleep Disorder: Causes, Symptoms, and 5 Ways to Manage It
Learn what shift work sleep disorder (SWSD) is, how to recognize the symptoms, and five practical strategies to sleep better on rotating or night shifts.