🌙 GoodSleep

Explore Sleep Tools & Guides

Maximize your sleep quality with our suite of free, science-backed calculators, interactive quizzes, and educational guides.

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Sleep Cycle Calculator

Find the perfect bedtime or Alarm times based on 90-minute sleep cycles. Wake up refreshed.

Alcohol Sleep Clearance

Calculate your BAC decay curve and find the safest bedtime window to protect REM sleep cycles.

Beauty Sleep Calculator

Find your peak anti-aging repair hours and calculate your growth hormone sleep score.

Coffee Nap Planner

Time your caffeine dose and short nap perfectly to clear brain fog and double focus.

Find the ideal power nap duration to boost alertness without grogginess or sleep inertia.

World Cup Sleep Planner

Convert kickoffs to your local time zone and calculate optimal sleep cycle schedules, split sleep shifts, and power naps.

Sleep Debt Calculator

Track and recover your weekly sleep deficit to boost cognitive performance.

Build a personalized 7-day consistent sleep routine that matches your daily schedule.

Get personalized sleep duration recommendations based on activity level and age.

Sleep Quality Audit

Evaluate your sleep health across 8 dimensions. Get a 0-100 score and discover your primary sleep disrupters.

Chronotype Quiz

Find your biological sleep schedule archetype (Bear, Lion, Wolf, or Dolphin).

See the scientific duration recommendations for every age group from baby to elderly.

Fall Asleep Fast

Learn 12 science-backed methods (like military method and 4-7-8 breathing) to fall asleep quickly.

Learn about chronic insomnia causes, symptoms, and Cognitive Behavioral Therapy (CBT-I) basics.

Sleep Deprivation

Understand how sleep debt and chronic deprivation impact physical health, immunity, and brain function.

Caffeine Sleep Calculator

See how much caffeine is in your system and estimate how it impacts your sleep quality.

Bedtime Calculator

Find the perfect bedtime or alarms based on 90-minute sleep cycles.

Kids Sleep Calculator

Pediatric bedtime calculations custom-tailored to children's shorter sleep cycles.

Melatonin Calculator

Find the optimal timing and dosage for melatonin based on sleep goals and circadian shifting.

Weighted Blanket Calculator

Determine the ideal weighted blanket weight and size for calming sleep therapy.

Sleepy Girl Mocktail

Optimize your recipe and timing to get sleep benefits without bladder disruption.

Ashwagandha Calculator

Determine your standardized dosage and cycle weeks on/off to prevent emotional blunting.

Mouth Taping Guide

Is mouth taping safe for you? Screen risk factors, run the nasal patency test, and learn protocols.

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Sleep Divorce Quiz

Are sleep disruptions impacting your relationship? Calculate compatibility and see solutions.

Which magnesium chelate is right for your body? Screen symptoms and find your form.

Steroid Calculator

Time your corticosteroids to prevent sleep onset issues. Renders interactive decay curves.

Polyphasic Planner

Map cores and power naps on a 24-hour circular dial. Build Everyman or Biphasic routines.

Jet Lag Planner

Shift your biological clock using light exposure guidelines. Renders interactive day-by-day transition timelines.

Biohacking Dashboard

Analyze your sleep animal chronotypes, magnesium types, and sleep cycles completely offline.

Shift Work Scheduler

Calculate optimal sleep blocks, anchor sleep, and light/dark exposure windows for night and rotating shifts.

Muscle Recovery Calculator

Calculate personalized sleep needs based on training intensity, volume, and muscle groups for optimal growth hormone.

New Parent Sleep Sync

Coordinate shifts between parents to guarantee critical consolidated sleep windows during infant feeding cycles.

Magnesium Guide

Learn why magnesium glycinate is the best supplement for relaxation and deep sleep.

Sleep Hygiene Score

Rate your bedroom habits, get a sleep score, and unlock custom improvement tips.

Sleep Apnea Quiz

Screen yourself for obstructive sleep apnea risk using the clinical STOP-BANG criteria.

Sleep Stages Guide

Learn the physiology of light, deep N3, and REM cycles and wake up feeling refreshed.

Circadian Rhythm

Understand how light, melatonin, and cortisol govern your biological sleep schedule.

Sleep Disorders Hub

Learn about the symptoms, causes, and treatments for sleep apnea, insomnia, and RLS.

CPAP Therapy Guide

Learn how CPAP machines treat obstructive sleep apnea, prevent snoring, and improve sleep.

Melatonin Guide

Learn how to time melatonin dosages safely without disrupting your natural body clock.

Sleep Positions Guide

Compare back, side, and stomach sleeping postures to optimize orthopedic alignment.

Pregnancy Sleep Guide

A trimester-by-trimester guide to managing insomnia, heartburn, and left-side sleeping.

Teen Sleep Guide

Learn why teen biological body clocks shift later and how to schedule academic sleep.

Menopause Sleep

Understand how estrogen decline and vasomotor hot flashes disrupt deep sleep stages.

Alcohol & Sleep

The science of alcohol's impact on sleep architecture, REM suppression, and elevated heart rate.

Exercise & Sleep

Learn how exercise builds deep sleep drive and how to time workouts for temperature dips.

Bedroom Environment

Optimize your sleep sanctuary using the 65°F rule, light sanitization, and pink noise.

Sleep Stages by Age

Explore how deep sleep (N3) drops and sleep fragmentation rises across different life stages.