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Sleep Calculator - Calculator.net

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Calculator to compute the time to wake up or go to bed based on sleep cycle or duration of sleep required. Also learn more about sleep. home/other/sleepcalculator SleepCalculator SleepCycleCalculator Usethiscalculatortocomputewhattimetogotobedorgetuptowakeuprefreshedbetweensleepcycles.Clickthesettingstochangesleepcyclelengthorthetimeyoutaketofallasleepforyourspecificsituation. Iwantto wakeupat gotobedat   : AM PM   Now 30minuteslater 1hourlater Settings Mysleepcyclelengthisminutes Ittakesmeminutestofallasleep  Settings SleepLengthCalculator Usethiscalculatortocomputewhattimetowakeuporgotobedtogetagivennumberofhoursofsleep.UsetheHoursCalculatorifyouwouldliketofindoutthenumberofhourssleptwhenyouknowwhattimesyouwokeupandwenttobed.Whencounting,pleasedeductthetimetakentofallasleep,whichcanbeverydifferentfordifferentpeople. Iwantto wakeupat gotobedat   : AM PM   Now 30minuteslater 1hourlater Iwanttosleepfor   hours  minutes   Sleepdescribesarecurringstateinwhichthebodyandmindareatrest,reducingmuscleactivity,interactionwithsurroundings,andtheabilitytoreacttostimuli.Theabilitytoreacttostimuliisoneofthedistinguishingfactorsbetweenthestatesofsleepandwakefulness.Forthepurposesofthispage,sleepwillprimarilybediscussedasitrelatestohumans. Sleepcycles Thesleepcyclecanbedefinedastheoscillationbetweennon-REM(rapideyemovement)andREMsleep,whichwillbothbediscussedbelow. Sleeptimingislargelybasedonhormonalsignalsfromthecircadianclock.Thecircadianclockexhibitsaregularrhythmthatcorrespondstooutsidesignals(suchasnight/day)thatcanpersisteveniftheoutsidesignalssuddenlydisappear.Anexampleofthisisjetlag,wherethebody'scircadianrhythmisaffectedduetorapidlong-distancetravel,whichresultsinthetravelerbeingmaladjustedtothelocaltime.Thetravelerthenfeelsthatitiseitherlaterorearlierthanwhattheirbodyisusedto,affectingtheirsleep. Ideally,aperson'ssleepcyclefollowsthecircadianclock,butsleepcanbeaffectedbynumerousfactorssuchaslight,socialtiming(whenothersareawake,whenworkisrequired,etc.),naps,genetics,andmore. REMandnon-REMsleep Duringsleep,thebrainexpendssignificantlylessenergythanitdoeswhenapersonisawake,particularlyduringnon-REM(rapideyemovement)sleep.REMsleepisatypeofsleepcharacterizedbyanumberofaspects,includingtheeyemovementsitisnamedfor,virtualparalysisofthebody,andtheoccurrenceofdreams.Non-REMandREMsleeparetwocategoriesofsleepthatarevastlydifferent. Typically,thebodycyclesbetweennon-REMandREMsleepoveraperiodof90minutesonaverage,andshouldoccur4-6timesinagoodnight'ssleep.Non-REMsleepbegins,eventuallymovingintoslow-wavesleep,ordeepsleep.Duringthisperiod,bodytemperatureandheartratefall,andthebrainusesfarlessenergy,whilerestoringitssupplyofadenosinetriphosphate(ATP),amoleculeusedforthestorageandtransportofenergy.Duringslow-wavesleep,growthhormoneisalsosecreted,whichisparticularlyimportantforhumandevelopment. REMsleeptypicallycomprisesasmallerproportionofsleeptime,andismostknownforbeingwhendreamsornightmaresusuallyoccur.DeprivationofREMsleepcanresultinanxiety,irritability,hallucinations,anddifficultyconcentrating.StudieshaveshownthatwhenthebodyisdeprivedofREMsleep,subsequentsleepwillinvolvethebodyincreasingthenumberofattemptstogointoREMsleep,aswellasincreasesintheamountoftimespentinREMsleepcomparedtoperiodsofnosleepdeprivation.ThisisreferredtoasaREMrebound,andisconsistentwiththebeliefthatREMsleepisnecessaryforthebody.REMsleep,itseffects,anditsnecessityarestillnotfullyunderstood,andthoughitistypicallyconsideredanimportantandnecessaryaspectofsleep,insomecases,deprivationofREMsleepcanhavetransientpositiveeffects. Sleepquality Sleepqualitycanbemeasuredintermsofthedegreeofdifficultyapersonhastofallasleepandtostayasleep,aswellasthenumberoftimesapersontypicallywakesupinasinglenight.Itcanalsobemeasuredmoresubjectivelyintermsofhowrestedapersonfeelsuponwaking. Havingpoorsleepqualitydisruptsthesleepcycleandthetransitionsbetweenthevariousstagesofsleep.Inordertohavegoodsleepquality,theneedtosleepmustbebalancedagainstthecircadianelementofsleep.Ideally,thetimingofsleepmustbebalancedsuchthatthemaximumconcentrationofthehormonemelatoninandtheminimumcorebodytemperatureoccurafterthemiddleofthesleepepisode,andbeforeawakening. HowmuchsleepdoIneed? Sleepisfarfromperfectlyunderstood,andtheamountofsleepapersonneedscanvarylargelybasedoncertainmetrics,suchasage,aswellasentirelyindividually.Apersonwhosleepsanadequateamountshouldexperiencenodaytimesleepinessordysfunction. Verygenerally,researchershavefoundthatachieving6-7hoursofsleeppernightcorrelateswithanumberofpositivehealthoutcomes,buttherearealsomanyotherfactorsthatmayaffecttheseoutcomes. Asapersonages,theytendtosleepless,withnewbornssleepingforsignificantlylongerhoursthanadults.Thisdiscrepancydecreaseswithage,andthesleeprequirementsbecomemoresimilartothatofadultsstartingaroundtheageof5. BelowaretheCDCsrecommendationsforthenumberofhoursapersonshouldsleepbasedonage. AgeGroupRecommendedHoursofSleepPerDay 0–3months14–17hours 4–12months12–16hoursper24hours(includingnaps) 1–2years11–14hoursper24hours(includingnaps) 3–5years10–13hoursper24hours(includingnaps) 6–12years9–12hoursper24hours 13–18years8–10hoursper24hours 18–60years7ormorehourspernight 61–64years7–9hours 65yearsandolder7–8hours SearchOtherCalculatorsAgeDateTimeHoursGPAGradeHeightConcreteIPSubnetBraSizePasswordGeneratorDiceRollerConversionMoreOtherCalculatorsFinancial|FitnessandHealth|Math|Other aboutus|sitemap|termsofuse|privacypolicy ©2008-2022calculator.net Financial Fitness&Health Math Other

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