Category / Sleep
Sleep
Sleep timing, light, caffeine, screens, alcohol, and late-night wake-ups, with fixes that make nights feel steadier.
17 lessons
Lessons
All 17 lessons
01
Card lessonSleep Debt Adds Up QuietlySeveral short nights in a row can feel normal right up until your mood, hunger, and focus say otherwise.Card lesson02Practical exerciseAnchor the Day So Night Gets EasierUse morning light and a steady wake time so nights stop drifting all over the place.Practical exercise03Practical exerciseMake the Room Stop Fighting SleepTemperature, light, noise, and cues quietly decide how well you sleep.Practical exercise04Card lessonMorning Light Sets the ClockA short morning light hit helps your body know when day starts, which makes night easier to find.Card lesson05Card lessonThe Caffeine Cutoff That MattersCaffeine can help in the morning and still make sleep lighter when it lands too late.Card lesson06Card lessonWhy Bedtime Turns Into ScrollingNight scrolling can push sleep later by combining bright light, stimulation, and easy access when you are already tired.Card lesson07Card lessonEvening Light DownshiftLower light and stimulation before bed so your brain can start releasing the sleep signal.Card lesson08Card lessonDownshift Before BedWhen your body is tired but your mind is still alert, reduce stimulation instead of forcing sleep.Card lesson09Card lessonThe 3 AM Wake-Up Plan3 AM wake-ups get easier when you stop negotiating with them and follow a calmer script.Card lesson10Card lessonNap Without Wrecking TonightA short nap can rescue the day. A sloppy one can ruin the night.Card lesson11Card lessonSleep Trackers Show Trends, Not TruthWearables are useful for trend lines and consistency, not as judges of exactly how well you slept.Card lesson12AssessmentWork With Your Sleep TypeYour natural timing matters, but it is something to work with, not an identity to overbuild around.Assessment13Deep-dive lessonWhy Alcohol Steals the Second Half of SleepAlcohol can knock you out fast while quietly wrecking the back half of the night that is meant to restore you.Deep-dive lesson14Deep-dive lessonWhen It's More Than HabitsSome repeating sleep patterns belong in a professional conversation, not another round of habit tweaks.Deep-dive lesson15Deep-dive lessonPlan Sleep Around Shift WorkProtect sleep when night, early, or changing shifts keep moving the clock.Deep-dive lesson16Deep-dive lessonReduce the Weekday-Weekend Clock ShiftLearn why free-day sleep can shift later and how to narrow the gap without sacrificing recovery sleep.Deep-dive lesson17Deep-dive lessonWhat REM and Dreams Can Actually Tell YouREM is a real sleep stage. Dream meaning is a much shakier claim.Deep-dive lesson
Card lessonSleep Debt Adds Up QuietlySeveral short nights in a row can feel normal right up until your mood, hunger, and focus say otherwise.Card lesson02Practical exerciseAnchor the Day So Night Gets EasierUse morning light and a steady wake time so nights stop drifting all over the place.Practical exercise03Practical exerciseMake the Room Stop Fighting SleepTemperature, light, noise, and cues quietly decide how well you sleep.Practical exercise04Card lessonMorning Light Sets the ClockA short morning light hit helps your body know when day starts, which makes night easier to find.Card lesson05Card lessonThe Caffeine Cutoff That MattersCaffeine can help in the morning and still make sleep lighter when it lands too late.Card lesson06Card lessonWhy Bedtime Turns Into ScrollingNight scrolling can push sleep later by combining bright light, stimulation, and easy access when you are already tired.Card lesson07Card lessonEvening Light DownshiftLower light and stimulation before bed so your brain can start releasing the sleep signal.Card lesson08Card lessonDownshift Before BedWhen your body is tired but your mind is still alert, reduce stimulation instead of forcing sleep.Card lesson09Card lessonThe 3 AM Wake-Up Plan3 AM wake-ups get easier when you stop negotiating with them and follow a calmer script.Card lesson10Card lessonNap Without Wrecking TonightA short nap can rescue the day. A sloppy one can ruin the night.Card lesson11Card lessonSleep Trackers Show Trends, Not TruthWearables are useful for trend lines and consistency, not as judges of exactly how well you slept.Card lesson12AssessmentWork With Your Sleep TypeYour natural timing matters, but it is something to work with, not an identity to overbuild around.Assessment13Deep-dive lessonWhy Alcohol Steals the Second Half of SleepAlcohol can knock you out fast while quietly wrecking the back half of the night that is meant to restore you.Deep-dive lesson14Deep-dive lessonWhen It's More Than HabitsSome repeating sleep patterns belong in a professional conversation, not another round of habit tweaks.Deep-dive lesson15Deep-dive lessonPlan Sleep Around Shift WorkProtect sleep when night, early, or changing shifts keep moving the clock.Deep-dive lesson16Deep-dive lessonReduce the Weekday-Weekend Clock ShiftLearn why free-day sleep can shift later and how to narrow the gap without sacrificing recovery sleep.Deep-dive lesson17Deep-dive lessonWhat REM and Dreams Can Actually Tell YouREM is a real sleep stage. Dream meaning is a much shakier claim.Deep-dive lesson