sleeping time中文How to sleep 8 hours in 3 hoursNational Sleep FoundationR90 sleep calculatorHow many hours of sleep do I needBest time to sleep

Sleep Calculator - The Sleep Charity

文章推薦指數： 80 %
投票人數：10人

If you need to wake up by 7am then count back 7.5 hours to find that bedtime is around 11.30pm. Make sure you're in bed before then so you're relaxed ready for ... SleepCalculator Lastupdated:December2020 Inanidealworldyouwouldwakeupnaturallyandattheendofasleepcycle. Unfortunatelywithwork,schoolrunsorothercommitmentsit’snotalwayspossibletowakenaturallyandoftenanalarm.Itcanbehardtogetoutof bedwhenthealarmgoesoffbutratherthanyoufeelingtiredbecauseoflackofsleep,itcouldbebecauseyou’vewokenmidsleepcycle. Whenyouwakemidcycle,youaremorelikelytofeelgroggyanddisorientated.Thebestwaytomakesureyouwakeattheendofacycleistoworkbackfromwhenyouwanttogetuptogetyouridealbedtime.Sleepcyclesarearound90minutesandwetendtogothrougharoundfiveanight. Howtoworkouttheidealbedtime Multiply90minutes(eachcycletime)byfive(thenumberofsleepcyclespernight)toget450minutesor7.5hoursofsleep.(Foursleepcycleswouldgivejustsixhoursofsleep,sixsleepcycleswouldgive9hoursofsleeppernight) Ifyouneedtowakeupby7amthencountback7.5hourstofindthatbedtimeisaround11.30pm.Makesureyou’reinbedbeforethensoyou’rerelaxedreadyforsleepandallowyourself15minutestodropoff. Youcanusethesleepcalculatortofindtheidealbedtimeforyou. It’simportanttorememberthatthesleepcalculatorisjustaguidetohelpyouunderstandyoursleeproutineandtohelpyouwakemorerefreshed.Alwaysworkontheknowledgeonhowyoufeelthenextdayafterbeingasleep–ifyouwakefeelingrefreshedandreadytotackle,chancesareyouaresleepingjustfine.Ifyouwakefeelingtiredthenit’slikelyyouneedmoresleep,orbetter-qualitysleep. SleepCycles Whenwefirstfallasleepweenternon-rapideyemovementsleep(NREM).Thisisdividedintothreestages,witheachbecomingprogressivelydeeper.NREM1andNREM2arelightphasesofsleep,fromwhichwecanbeeasilyroused.NREM3becomesdeeper,andifwokenup,wecanfeeldisorientated.Followingonfromthisisrapideyemovementsleep(REM),thestageatwhichwedream. Eachsleepcyclelastsaroundoneandahalfhours,andinordertofeelfullyrestedandrefreshedwhenwewakeup,wemustexperienceallfourstages.Afullnight’ssleepwillincludefiveorsixcycles,whileadisturbed,restlessnightconsistsoffewer. Ifyoufeellikefourcyclesistoolittle(sixhoursofsleep)butfivecyclesistoomuch(7.5hoursofsleep)thentrytomakesureyouwakeupinstage1or2ofsleepwhicharelighterphasesofsleep.Thesetwostageswilllastnomorethan30minutesaltogether. SleepCycleCalculator Wehaveplacedcookiesonyourdevicetohelpmakethiswebsitebetter.ReadMoreACCEPTManageconsent Close PrivacyOverview Thiswebsiteusescookiestoimproveyourexperiencewhileyounavigatethroughthewebsite.Outofthese,thecookiesthatarecategorizedasnecessaryarestoredonyourbrowserastheyareessentialfortheworkingofbasicfunctionalitiesofthewebsite.Wealsousethird-partycookiesthathelpusanalyzeandunderstandhowyouusethiswebsite.Thesecookieswillbestoredinyourbrowseronlywithyourconsent.Youalsohavetheoptiontoopt-outofthesecookies.Butoptingoutofsomeofthesecookiesmayaffectyourbrowsingexperience. Necessary Necessary AlwaysEnabled Necessarycookiesareabsolutelyessentialforthewebsitetofunctionproperly.Thiscategoryonlyincludescookiesthatensuresbasicfunctionalitiesandsecurityfeaturesofthewebsite.Thesecookiesdonotstoreanypersonalinformation. Non-necessary Non-necessary Anycookiesthatmaynotbeparticularlynecessaryforthewebsitetofunctionandisusedspecificallytocollectuserpersonaldataviaanalytics,ads,otherembeddedcontentsaretermedasnon-necessarycookies.Itismandatorytoprocureuserconsentpriortorunningthesecookiesonyourwebsite. SAVE&ACCEPT

請為這篇文章評分？

延伸文章資訊