sleep time - SERP Analysis

https://sleepopolis.com/calculators/sleep/

https://sleepytime.cc/

https://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/how-many-hours-of-sleep-are-enough/faq-20057898

https://apps.apple.com/us/app/sleep-time-cycle-alarm-timer/id555564825

https://sleepcalculator.com/

https://www.ncbi.nlm.nih.gov/books/NBK526132/

https://www.sleephealthjournal.org/article/s2352-7218(15)00015-7/fulltext

https://www.calculator.net/sleep-calculator.html

https://play.google.com/store/apps/details?id=ru.olegfilimonov.sleeptime&hl=en_US

https://my.clevelandclinic.org/health/body/12148-sleep-basics

https://www.cdc.gov/sleep/about/index.html

https://kidshealth.org/en/parents/sleep.html

https://www.thensf.org/how-many-hours-of-sleep-do-you-really-need/

https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/sleep/art-20048379

https://www.sleepfoundation.org/sleep-calculator

https://www.nia.nih.gov/health/sleep/sleep-and-older-adults

https://www.healthline.com/health/sleep/sleep-calculator

https://www.azumio.com/s/sleeptime/index.html

https://thesleepcharity.org.uk/information-support/adults/sleep-calculator/

https://www.hillarys.co.uk/static/sleep-calculator/

https://support.google.com/fit/answer/9399034?hl=en

https://www.sleepfoundation.org/stages-of-sleep

https://en.wikipedia.org/wiki/Sleep

https://sleepcycle.com/

https://www.sciencedirect.com/topics/neuroscience/sleep-time

https://www.hopkinsmedicine.org/health/wellness-and-prevention/the-science-of-sleep-understanding-what-happens-when-you-sleep

https://www.digitalocean.com/community/tutorials/python-time-sleep

https://www.dol.gov/agencies/whd/direct-care/sleep-time

https://www.health.harvard.edu/blog/how-much-sleep-do-you-actually-need-202310302986

https://www.verywellhealth.com/what-time-should-you-go-to-sleep-4588298

https://time.com/collection/guide-to-sleep/

https://support.apple.com/en-us/108906

https://www.uofmhealth.org/conditions-treatments/brain-neurological-conditions/circadian-rhythm-sleep-disorders

https://my.clevelandclinic.org/health/diseases/14295-delayed-sleep-phase-syndrome-dsps

https://medlineplus.gov/ency/article/004018.htm

https://docs.python.org/3/library/time.html

https://www.sleep.com/sleep-health/how-many-hours-of-sleep

https://kidshealth.org/en/teens/how-much-sleep.html

https://support.microsoft.com/en-us/windows/power-settings-in-windows-11-0d6a2b6b-2e87-4611-9980-ac9ea2175734

https://www.betterhealth.vic.gov.au/health/healthyliving/typical-sleep-behaviour-toddlers-2-3-years

https://www.nhs.uk/every-mind-matters/mental-wellbeing-tips/how-to-fall-asleep-faster-and-sleep-better/

https://www.nytimes.com/athletic/6435453/2025/06/19/trouble-sleeping-athletes-training/

https://www.statnews.com/2025/06/25/teen-screen-time-sleep-loss-role-of-sleeping-in-adolescent-mental-health-crisis/

https://health.ucdavis.edu/blog/cultivating-health/melatonin-and-your-sleep-is-it-safe-what-are-the-side-effects-and-how-does-it-work/2025/02

https://www.healthline.com/nutrition/17-tips-to-sleep-better

https://www.stanfordchildrens.org/en/topic/default?id=infant-sleep-90-P02237

https://www.healthdirect.gov.au/sleep

https://www.everydayhealth.com/sleep/insomnia/resetting-your-clock.aspx

https://www.hopkinsmedicine.org/health/wellness-and-prevention/teenagers-and-sleep-how-much-sleep-is-enough

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2835594

https://time.com/3183183/best-time-to-sleep/

https://huckleberrycare.com/blog/3-month-old-sleep-schedule-and-development

https://snoremd.com.au/best-time-to-sleep-according-to-science/?srsltid=AfmBOoqrTM9dmHHcvERv7HCToKKH2ORpjQFxQaHLrTVIo4oA69sQ8qfr

https://support.google.com/fitbit/answer/14236407?hl=en

https://www.betterhealth.vic.gov.au/health/healthyliving/typical-sleep-behaviour-nb-0-3-months

https://en.wikipedia.org/wiki/Polyphasic_sleep

https://www.youtube.com/watch?v=6Poay-LWMtM

https://www.cnet.com/health/sleep/with-the-10-3-2-1-0-sleep-rule-a-good-nights-sleep-might-be-closer-than-you-think/

https://huckleberrycare.com/blog/2-month-old-sleep-schedule-and-development

https://www.nhs.uk/conditions/insomnia/

https://www.helpguide.org/wellness/sleep/sleep-needs-get-the-sleep-you-need

https://play.google.com/store/apps/details?id=app.fitterapp.sleeptime&hl=en_US

https://help.instagram.com/688407339404755/?helpref=related_articles

https://www.nature.com/articles/s41421-025-00809-w

https://www.empirical.health/blog/effect-of-noise-on-sleep

https://www.psypost.org/more-time-in-bed-benefits-morning-and-evening-type-teens-differently-new-study-suggests/

https://www.npr.org/2025/06/23/nx-s1-5438087/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.news-medical.net/news/20250623/Teen-screen-time-linked-to-poor-sleep-and-brain-changes.aspx

https://www.youtube.com/watch?v=FGRxw3ACIkw

https://www.dol.gov/agencies/whd/fact-sheets/22-flsa-hours-worked

https://www.uchealth.org/today/sleep-and-dementia-risk-why-more-isnt-always-better/

https://takingcarababies.com/toddler-nap-schedules-for-2-3-and-4-year-olds?srsltid=AfmBOoq_ztwxbF55m1WCf4WjGrxVGyfShtNF1sOXHIWAVmS9Z1m8y_yz

https://www.choa.org/parent-resources/caring-for-your-kid-at-home/melatonin-and-safe-sleep

https://nypost.com/health/im-a-sleep-expert-this-is-the-exact-time-of-night-you-should-go-to-bed-for-optimal-rest/

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2835598

https://www.wusf.org/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.reddit.com/r/ADHD/comments/1llmd33/struggling_w_going_to_sleep_on_time_during_work/

https://neuronewsinternational.com/ean-2025-heart-rate-variability-during-sleep-may-reveal-early-signs-of-stroke-depression-or-cognitive-dysfunction/

https://sleepdoctor.com/pages/chronotypes/chronotype-quiz

https://www.pulmonologyadvisor.com/news/irregular-sleep-linked-to-severe-metabolic-dysfunction-in-black-adults/

https://www.orlandohealth.com/content-hub/how-to-help-your-child-get-enough-sleep/

https://www.nature.com/articles/s41598-025-08726-4

https://www.wypr.org/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.mdpi.com/2039-4349/15/4/76

https://www.nhpr.org/environment/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.knkx.org/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.wunc.org/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.jmir.org/2025/1/e67751

https://www.vpm.org/npr-news/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.youtube.com/watch?v=rn1Fk8hYen8

https://www.du.edu/news/when-sleep-during-pregnancy-isnt-just-personal-its-research

https://www.kgou.org/health/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://us.community.samsung.com/t5/Galaxy-Watch/Sleep-time/td-p/3282172

https://www.wfae.org/energy-environment/2025-06-23/climate-change-is-boosting-the-risk-of-sleep-apnea

https://www.kuow.org/stories/climate-change-is-boosting-the-risk-of-sleep-apnea