How to Fix Sleep Schedules Naturally: 6 Tips to Help

Written by Dr. Ruscio on July 19, 2021

Written by Dr. Ruscio on July 19, 2021 — Reviewed by Hilary Watts

Snapshot|
Sleep Schedules & Circadian Rhythm|
Causes of Sleep Problems|
How to Fix Sleep Schedules|
Sleep Supplements|
The Bottom Line|
Recommended Products|

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Challenges with your sleep schedule like frequent trouble falling asleep, staying asleep, or getting back to sleep in the middle of the night can leave you tired, foggy, and irritable. It’s no wonder so many people wonder how to fix sleep schedules.

Not getting good sleep is also hard on your overall health. A lack of quality sleep is associated with numerous chronic health conditions, including autoimmune disease, heart disease, weight problems, cognitive difficulties, and digestive issues [1, 2, 3, 4, 5, 6].

Sadly, sleep problems are quite common [7]. But patients who are wondering how to fix sleep schedules need not despair. In our clinic, we’ve seen people make remarkable progress with some dedicated attention to their sleep habits. You, too, can get better sleep.

In this article, we’ll discuss how your sleep cycle and circadian rhythm works, what can disrupt your sleep schedule, and share six key tips about how to fix sleep schedules and get better sleep.

How to Fix Sleep Schedules: Snapshot

Resetting your sleep schedule is a vitally important kind of self-care. Here is a quick summary of research-backed options to fix your sleep schedule.

Set a bedtime routine and a consistent bedtime and waking time. Avoid all-nighters and shift work if possible. Try to eat dinner at least two hours before bedtime.
Avoid bright lights and screen use for at least two hours before bed.
Modify your bedroom environment (temperature, lights, sounds) to support good sleep.
Address breathing problems, like mouth breathing, snoring, sleep apnea, or allergies by consulting with a medical professional.
Exercise regularly, but avoid vigorous exercise close to bedtime.
Try taking melatonin to help you fall asleep quickly, and take probiotics for general sleep support.

Sleep Cycles and Circadian Rhythm

Your sleep-wake cycle is regulated by your circadian rhythm (body clock) which responds to daylight cues. Your hypothalamus, a tiny region at the center of your brain, plays an important role in this cycle. It responds to the fading light at the end of the day by releasing the hormone melatonin, which initiates your nightly sleep cycle [8].

Throughout the night, your brain cycles through different sleep patterns, which include varying levels of Non-REM (NREM) deep sleep and rapid eye movement (REM) sleep, which is when you dream [9].

When your sleep cycle runs smoothly, you usually experience four stages of sleep [10] in a cycle:

NREM 1: This light sleep is associated with a transition from alpha brain waves to theta waves.
NREM 2: A deeper sleep, NREM 2 is associated with theta brain waves, where you are harder to awaken.
NREM 3: This is deep sleep associated with delta brain waves. You become non-responsive to sounds or other stimulus.
A return to NREM 2
REM: REM is sleep with rapid eye movement. In REM sleep, your body’s heart rate, breathing, and body temperature may change and you may dream.

Research suggests 7-9 hours of sleep per night provides the best health benefits [7].

What’s Contributing to Your Sleep Problems?

If you’re not getting enough restful sleep, it’s important to consider possible causes.

The most obvious challenge to getting quality sleep is it simply isn’t a priority for many people. If this is the case for you, getting committed to taking good care of your sleep is key. Just remember that a lack of quality sleep contributes to many health conditions, including heart disease [11], obesity [11, 12, 13, 14], metabolic syndrome [11], poor brain function [11], and of course, fatigue [11].

Here are some things that can affect your sleep schedule, sleep quality, or contribute to sleep disorders that you may need to pay attention to:

Alterations to your biological clock from jet lag, time zone changes, or shift work [15]
Breathing issues like mouth breathing [16], sleep apnea [17], snoring, or allergies [18]
Screen time and light exposure near bedtime
Sleep environment disturbances such as lights, room temperature, or noise
Hormone changes in women such as menstruation, pregnancy, or menopause [19]
Gut infections or disorders, like IBS and IBD [20]
Stress, anxiety [21], or other mental health problems
Certain medical conditions, like hyperthyroidism, reflux, chronic obstructive pulmonary disease (COPD), diabetes [22], and more [23]

How to Fix Sleep Schedules

Resetting your sleep schedule is possible when you devote attention to your sleep hygiene (the habits, practices, and environment that help you sleep well). Sleep patterns respond to your other behaviors, so fixing sleep schedules is largely about creating routines that best support your sleep. Experiment with these options to see which ones make the most difference for you.

1. Set a Consistent Bedtime Routine

One of the best ways to support your sleep success is to reset your circadian clock by sticking to a consistent sleep schedule, even on your days off. Create a regular schedule for your bedtime and waking time.

For some people, waking up early is a challenge. An alarm clock can help you stick to your normal waking time. For others, going to bed on time is the harder task. Creating a bedtime routine to wind down each night can send the right signals to your internal clock that it’s time to settle down.

This might include doing things like:

Taking a hot bath or shower [24] or soaking in a hot tub
Dimming your lights [24]
Turning off your TV and setting your phone to airplane mode to pause distracting notifications
Doing a quiet, calming activity, like reading a real book, listening to some relaxing music [24], or snuggling with your family or pets
Try to eat at least two hours before bedtime, and avoid late-night snacking.

Avoid Pulling ‘All-Nighters’

Persistent sleep deprivation, such as repeated all-nighters to work, study, or party can impact your brain function, blood sugar, and hunger hormones the next day [12, 13, 14], and of course can leave you feeling fatigued. If you can, make it a point to avoid frequent late nights or all nighters.

Napping and Sleep Schedules

If you have trouble sleeping, you may have been given the advice to avoid napping, as it might disrupt your ability to sleep well later that night. However, the evidence about napping isn’t yet clear and more research needs to be done [25].

If you’re feeling tired and short on sleep during the day, short 15-20 minute naps may help restore your wakefulness and attention and shouldn’t disrupt your sleep later. However, long naps may impact your nighttime sleep.

2. Avoid Blue Light Near Bedtime

Though you may be accustomed to using screens to wind down in the evening, research suggests this isn’t a good practice for your sleep quality. According to a systematic review and meta analysis of clinical studies, all colors of light, even at low intensity, can disrupt your circadian rhythm [26].

The same systematic review also found that two hours of exposure to blue light in the evening (light from cell phones, televisions, computer monitors, or even from bright lights) suppresses melatonin, the hormone that helps you fall asleep [26].

Two other studies found that screen use at or before bedtime use was associated with inadequate sleep duration, excessive daytime sleepiness [27], and an increased risk of poor sleep quality [28].

For best sleep results, limit blue light exposure in the two hours before your normal bedtime. It may encourage a healthy melatonin response and support good sleep.

If you can’t avoid screen use in the evening, using blue-light blocking glasses [29], apps such as f.lux or Iris, or the built-in Apple function called “night shift” can help.

3. Bedroom Environment

Creating a sacred, quiet, distraction-free zone in your bedroom sets the tone for a restful night of sleep. Research suggests that for those without sleep apnea, a bedroom temperature of around 60 degrees F leads to better sleep [30].

Other ways you can adjust your sleep environment include:

Using earplugs or a white noise generator to manage unwanted sounds
Using blackout curtains or an eye mask to minimize outside light
Covering LED lights or moving appliances with glowing lights
Turning off your Wi-Fi router and switching your phone to airplane mode at night

4. Address Nighttime Breathing Problems

Difficulty breathing normally at night, from sleep apnea (a sleep disorder that affects your breathing), allergies [18], or other nasal obstructions [17] can lead to frequent waking, heart rate elevations, and spikes of adrenaline, which can disrupt your sleep schedule and leave you feeling exhausted come morning.

If you’re not sure if you have breathing problems while you sleep, apps such as SnoreLab or the home sleep test WatchPAT can help you evaluate your nighttime breathing. We have started using WatchPat One with our patients, and would be happy to discuss this with you if you need help. Otherwise, you may need to visit a sleep specialist for evaluation.

Sleep apnea is often treated with a continuous positive airway pressure (CPAP) machine or mouth appliances [31]. Other options that may improve sleep apnea or snoring include:

Physical therapy of the mouth (myofunctional therapy) [32, 33]
Breathing exercises [34]
Playing wind instruments like the clarinet or didgeridoo [35].

And probiotics [36, 37] or a low histamine diet [38] may improve seasonal allergies and histamine problems, so they may help as well.

5. Exercise for Better Sleep

One way to help regulate your body’s internal clock is to exercise regularly. Exercise not only benefits your metabolism [39] and mental health [40] but has also been shown to improve sleep. A systematic review and meta analysis found that including regular daily exercise helped adults sleep 19% better [41].

Exercise appears to be especially helpful for people with sleep apnea. A systematic review and meta analysis of 80 clinical trials found that exercise was the second most effective approach to resolve sleep apnea next to CPAP [42].

And the timing of your exercise matters, too. A systematic review and meta analysis found that vigorous exercise that ends within an hour before bedtime may impair total sleep time, time of sleep onset, and sleep efficiency [43]. So it’s best to complete your exercise earlier in the day.

6. Supplements to Support Sleep

While the behavioral changes we’ve just discussed are super important, a few particular supplements can help you reset your sleep schedule.

Melatonin has been shown in several systematic reviews and meta analyses to decrease the amount of time it takes to fall asleep and increase total sleep time and sleep quality [44, 45, 46]. And as a bonus, melatonin supplementation has also been shown to be helpful with IBS [47].

And while the effect is a little more subtle than melatonin, several clinical studies showed that probiotic supplementation improved sleep quality [48, 49, 50, 51].

Shift Work and Sleep Schedules

If possible, avoiding shift work is best for your sleep and health. Shift work, or working overnight hours for your job, is associated with an increased risk of cardiovascular disease [52] and mental health disorders, particularly depression [53]. It also increases the risk of sleep disorders and metabolic disorders [15].

However, not everyone can quit their shift work job. These tips can help you keep a healthy sleep schedule even if you do shift work:

Set a regular sleep routine and stick to it, despite your odd hours.
Avoid caffeine for the last four hours of your shift.
Go straight to bed when you get home.
Wear sunglasses on your way home, even if it’s cloudy, to reduce light exposure, which may signal to your brain it’s time to wake up.
Make sure your family and friends know when not to disturb you.

Sleep Wearables: Learn About Your Sleep Schedule

If after adjusting everything you are still having trouble sleeping, sleep wearables like the Oura Ring and others, can help you assess what’s going on. According to several separate studies, the Oura ring was the best direct-to-consumer wearable because it measured sleep most similarly to the technology used in clinical sleep studies [11, 54, 55].

You can also ask your doctor about doing a sleep study or getting a referral to a sleep specialist, or come visit us at the Ruscio Institute for Functional Medicine to learn more about doing an at-home sleep test.

The Bottom Line

If you’re not sleeping well, it’s vitally important for your health to balance your sleep schedule so you can feel rested. Setting a consistent sleep schedule and routine, attending to any breathing problems, your sleep environment, and your exercise routines, and limiting blue light exposure in the evening can all help. And sleep wearables can help you further understand what’s going on with your sleep.

With a little focused attention, you can sleep soundly through the night and wake up feeling refreshed and ready to take on your life.

If you need help resetting your sleep schedule, consider reaching out to our health coach or clinic for some support.

Dr. Michael Ruscio is a DC, Naturopathic Practitioner, researcher, and clinician. He serves as an Adjunct Professor at the University of Bridgeport and has published numerous papers in scientific journals as well as the book Healthy Gut, Healthy You. He also founded the Ruscio Institute of Functional Health, where he helps patients with a wide range of GI conditions and serves as the Head of Research.

➕ References

Yang X, Chen H, Li S, Pan L, Jia C. Association of Sleep Duration with the Morbidity and Mortality of Coronary Artery Disease: A Meta-analysis of Prospective Studies. Heart Lung Circ. 2015 Dec;24(12):1180-90. doi: 10.1016/j.hlc.2015.08.005. Epub 2015 Sep 7. PMID: 26422535.
Zhou Q, Zhang M, Hu D. Dose-response association between sleep duration and obesity risk: a systematic review and meta-analysis of prospective cohort studies. Sleep Breath. 2019 Dec;23(4):1035-1045. doi: 10.1007/s11325-019-01824-4. Epub 2019 Apr 2. PMID: 30941582.
Segura-Jiménez V, Carbonell-Baeza A, Keating XD, Ruiz JR, Castro-Piñero J. Association of sleep patterns with psychological positive health and health complaints in children and adolescents. Qual Life Res. 2015 Apr;24(4):885-95. doi: 10.1007/s11136-014-0827-0. Epub 2014 Oct 16. PMID: 25319339.
Honn KA, Hinson JM, Whitney P, Van Dongen HPA. Cognitive flexibility: A distinct element of performance impairment due to sleep deprivation. Accid Anal Prev. 2019 May;126:191-197. doi: 10.1016/j.aap.2018.02.013. Epub 2018 Mar 15. PMID: 29549968.
Hsiao YH, Chen YT, Tseng CM, Wu LA, Lin WC, Su VY, Perng DW, Chang SC, Chen YM, Chen TJ, Lee YC, Chou KT. Sleep disorders and increased risk of autoimmune diseases in individuals without sleep apnea. Sleep. 2015 Apr 1;38(4):581-6. doi: 10.5665/sleep.4574. PMID: 25669189; PMCID: PMC4355897.
Kim HI, Jung SA, Choi JY, Kim SE, Jung HK, Shim KN, Yoo K. Impact of shiftwork on irritable bowel syndrome and functional dyspepsia. J Korean Med Sci. 2013 Mar;28(3):431-7. doi: 10.3346/jkms.2013.28.3.431. Epub 2013 Mar 4. PMID: 23487413; PMCID: PMC3594608.
García-Perdomo HA, Zapata-Copete J, Rojas-Cerón CA. Sleep duration and risk of all-cause mortality: a systematic review and meta-analysis. Epidemiol Psychiatr Sci. 2019 Oct;28(5):578-588. doi: 10.1017/S2045796018000379. Epub 2018 Jul 30. PMID: 30058510; PMCID: PMC6998920.
Zisapel N. New perspectives on the role of melatonin in human sleep, circadian rhythms and their regulation. Br J Pharmacol. 2018 Aug;175(16):3190-3199. doi: 10.1111/bph.14116. Epub 2018 Jan 15. PMID: 29318587; PMCID: PMC6057895.
Chokroverty S. Overview of sleep & sleep disorders. Indian J Med Res. 2010 Feb;131:126-40. PMID: 20308738.
https://www.aastweb.org/blog/sleep-stages-the-evolution-of-sleep-medicine-in-neurology-part-one
Chaudhry FF, Danieletto M, Golden E, Scelza J, Botwin G, Shervey M, De Freitas JK, Paranjpe I, Nadkarni GN, Miotto R, Glowe P, Stock G, Percha B, Zimmerman N, Dudley JT, Glicksberg BS. Sleep in the Natural Environment: A Pilot Study. Sensors (Basel). 2020 Mar 3;20(5):1378. doi: 10.3390/s20051378. PMID: 32138289; PMCID: PMC7085707.
Greer SM, Goldstein AN, Walker MP. The impact of sleep deprivation on food desire in the human brain. Nat Commun. 2013;4:2259. doi: 10.1038/ncomms3259. PMID: 23922121; PMCID: PMC3763921.
Nedeltcheva AV, Kilkus JM, Imperial J, Schoeller DA, Penev PD. Insufficient sleep undermines dietary efforts to reduce adiposity. Ann Intern Med. 2010 Oct 5;153(7):435-41. doi: 10.7326/0003-4819-153-7-201010050-00006. PMID: 20921542; PMCID: PMC2951287.
Benedict C, Brooks SJ, O’Daly OG, Almèn MS, Morell A, Åberg K, Gingnell M, Schultes B, Hallschmid M, Broman JE, Larsson EM, Schiöth HB. Acute sleep deprivation enhances the brain’s response to hedonic food stimuli: an fMRI study. J Clin Endocrinol Metab. 2012 Mar;97(3):E443-7. doi: 10.1210/jc.2011-2759. Epub 2012 Jan 18. PMID: 22259064.
Rosa D, Terzoni S, Dellafiore F, Destrebecq A. Systematic review of shift work and nurses’ health. Occup Med (Lond). 2019 Jun 24;69(4):237-243. doi: 10.1093/occmed/kqz063. PMID: 31132107.
Sano M, Sano S, Kato H, Arakawa K, Arai M. Proposal for a screening questionnaire for detecting habitual mouth breathing, based on a mouth-breathing habit score. BMC Oral Health. 2018 Dec 13;18(1):216. doi: 10.1186/s12903-018-0672-6. PMID: 30545339; PMCID: PMC6293616.
Cai Y, Goldberg AN, Chang JL. The Nose and Nasal Breathing in Sleep Apnea. Otolaryngol Clin North Am. 2020 Jun;53(3):385-395. doi: 10.1016/j.otc.2020.02.002. Epub 2020 Mar 17. PMID: 32192710.
Liu J, Zhang X, Zhao Y, Wang Y. The association between allergic rhinitis and sleep: A systematic review and meta-analysis of observational studies. PLoS One. 2020 Feb 13;15(2):e0228533. doi: 10.1371/journal.pone.0228533. PMID: 32053609; PMCID: PMC7018032.
Pengo MF, Won CH, Bourjeily G. Sleep in Women Across the Life Span. Chest. 2018 Jul;154(1):196-206. doi: 10.1016/j.chest.2018.04.005. Epub 2018 Apr 19. PMID: 29679598; PMCID: PMC6045782.
Eugene AR, Masiak J. The Neuroprotective Aspects of Sleep. MEDtube Sci. 2015 Mar;3(1):35-40. PMID: 26594659; PMCID: PMC4651462.
Kalmbach DA, Anderson JR, Drake CL. The impact of stress on sleep: Pathogenic sleep reactivity as a vulnerability to insomnia and circadian disorders. J Sleep Res. 2018 Dec;27(6):e12710. doi: 10.1111/jsr.12710. Epub 2018 May 24. PMID: 29797753; PMCID: PMC7045300.
Van Cauter E, Spiegel K, Tasali E, Leproult R. Metabolic consequences of sleep and sleep loss. Sleep Med. 2008 Sep;9 Suppl 1(0 1):S23-8. doi: 10.1016/S1389-9457(08)70013-3. PMID: 18929315; PMCID: PMC4444051.
Karna B, Gupta V. Sleep Disorder. [Updated 2021 Feb 6]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK560720/
Wang CF, Sun YL, Zang HX. Music therapy improves sleep quality in acute and chronic sleep disorders: a meta-analysis of 10 randomized studies. Int J Nurs Stud. 2014 Jan;51(1):51-62. doi: 10.1016/j.ijnurstu.2013.03.008. Epub 2013 Apr 9. PMID: 23582682.
Takahashi M. The role of prescribed napping in sleep medicine. Sleep Med Rev. 2003 Jun;7(3):227-35. doi: 10.1053/smrv.2002.0241. PMID: 12927122.
Tähkämö L, Partonen T, Pesonen AK. Systematic review of light exposure impact on human circadian rhythm. Chronobiol Int. 2019 Feb;36(2):151-170. doi: 10.1080/07420528.2018.1527773. Epub 2018 Oct 12. PMID: 30311830.
Carter B, Rees P, Hale L, Bhattacharjee D, Paradkar MS. Association Between Portable Screen-Based Media Device Access or Use and Sleep Outcomes: A Systematic Review and Meta-analysis. JAMA Pediatr. 2016 Dec 1;170(12):1202-1208. doi: 10.1001/jamapediatrics.2016.2341. PMID: 27802500; PMCID: PMC5380441.
Xie YJ, Cheung DS, Loke AY, Nogueira BL, Liu KM, Leung AY, Tsang AS, Leong CS, Molassiotis A. Relationships Between the Usage of Televisions, Computers, and Mobile Phones and the Quality of Sleep in a Chinese Population: Community-Based Cross-Sectional Study. J Med Internet Res. 2020 Jul 7;22(7):e18095. doi: 10.2196/18095. PMID: 32369439; PMCID: PMC7380995.
Burkhart K, Phelps JR. Amber lenses to block blue light and improve sleep: a randomized trial. Chronobiol Int. 2009 Dec;26(8):1602-12. doi: 10.3109/07420520903523719. PMID: 20030543.
Valham F, Sahlin C, Stenlund H, Franklin KA. Ambient temperature and obstructive sleep apnea: effects on sleep, sleep apnea, and morning alertness. Sleep. 2012 Apr 1;35(4):513-7. doi: 10.5665/sleep.1736. PMID: 22467989; PMCID: PMC3296793.
Lorenzi-Filho G, Almeida FR, Strollo PJ. Treating OSA: Current and emerging therapies beyond CPAP. Respirology. 2017 Nov;22(8):1500-1507. doi: 10.1111/resp.13144. Epub 2017 Sep 12. PMID: 28901030.
Rueda JR, Mugueta-Aguinaga I, Vilaró J, Rueda-Etxebarria M. Myofunctional therapy (oropharyngeal exercises) for obstructive sleep apnoea. Cochrane Database Syst Rev. 2020 Nov 3;11:CD013449. doi: 10.1002/14651858.CD013449.pub2. PMID: 33141943.
Camacho M, Certal V, Abdullatif J, Zaghi S, Ruoff CM, Capasso R, Kushida CA. Myofunctional Therapy to Treat Obstructive Sleep Apnea: A Systematic Review and Meta-analysis. Sleep. 2015 May 1;38(5):669-75. doi: 10.5665/sleep.4652. PMID: 25348130; PMCID: PMC4402674.
Courtney R. Breathing retraining in sleep apnoea: a review of approaches and potential mechanisms. Sleep Breath. 2020 Dec;24(4):1315-1325. doi: 10.1007/s11325-020-02013-4. Epub 2020 Jan 15. PMID: 31940122.
van der Weijden FN, Lobbezoo F, Slot DE. The effect of playing a wind instrument or singing on risk of sleep apnea: a systematic review and meta-analysis. J Clin Sleep Med. 2020 Sep 15;16(9):1591-1601. doi: 10.5664/jcsm.8628. PMID: 32536365; PMCID: PMC7970593.
Güvenç IA, Muluk NB, Mutlu FŞ, Eşki E, Altıntoprak N, Oktemer T, Cingi C. Do probiotics have a role in the treatment of allergic rhinitis? A comprehensive systematic review and meta-analysis. Am J Rhinol Allergy. 2016 Sep 1;30(5):157-175. doi: 10.2500/ajra.2016.30.4354. Epub 2016 Jul 20. PMID: 27442711.
Dennis-Wall JC, Culpepper T, Nieves C Jr, Rowe CC, Burns AM, Rusch CT, Federico A, Ukhanova M, Waugh S, Mai V, Christman MC, Langkamp-Henken B. Probiotics (Lactobacillus gasseri KS-13, Bifidobacterium bifidum G9-1, and Bifidobacterium longum MM-2) improve rhinoconjunctivitis-specific quality of life in individuals with seasonal allergies: a double-blind, placebo-controlled, randomized trial. Am J Clin Nutr. 2017 Mar;105(3):758-767. doi: 10.3945/ajcn.116.140012. Epub 2017 Feb 22. PMID: 28228426.
Lackner S, Malcher V, Enko D, Mangge H, Holasek SJ, Schnedl WJ. Histamine-reduced diet and increase of serum diamine oxidase correlating to diet compliance in histamine intolerance. Eur J Clin Nutr. 2019 Jan;73(1):102-104. doi: 10.1038/s41430-018-0260-5. Epub 2018 Jul 18. PMID: 30022117.
Kirwan JP, Sacks J, Nieuwoudt S. The essential role of exercise in the management of type 2 diabetes. Cleve Clin J Med. 2017 Jul;84(7 Suppl 1):S15-S21. doi: 10.3949/ccjm.84.s1.03. PMID: 28708479; PMCID: PMC5846677.
Mikkelsen K, Stojanovska L, Polenakovic M, Bosevski M, Apostolopoulos V. Exercise and mental health. Maturitas. 2017 Dec;106:48-56. doi: 10.1016/j.maturitas.2017.09.003. Epub 2017 Sep 7. PMID: 29150166.
Kelley GA, Kelley KS. Exercise and sleep: a systematic review of previous meta-analyses. J Evid Based Med. 2017 Feb;10(1):26-36. doi: 10.1111/jebm.12236. PMID: 28276627; PMCID: PMC5527334.
Iftikhar IH, Bittencourt L, Youngstedt SD, Ayas N, Cistulli P, Schwab R, Durkin MW, Magalang UJ. Comparative efficacy of CPAP, MADs, exercise-training, and dietary weight loss for sleep apnea: a network meta-analysis. Sleep Med. 2017 Feb;30:7-14. doi: 10.1016/j.sleep.2016.06.001. Epub 2016 Jun 28. PMID: 28215266.
Stutz J, Eiholzer R, Spengler CM. Effects of Evening Exercise on Sleep in Healthy Participants: A Systematic Review and Meta-Analysis. Sports Med. 2019 Feb;49(2):269-287. doi: 10.1007/s40279-018-1015-0. PMID: 30374942.
Ferracioli-Oda E, Qawasmi A, Bloch MH. Meta-analysis: melatonin for the treatment of primary sleep disorders. PLoS One. 2013 May 17;8(5):e63773. doi: 10.1371/journal.pone.0063773. PMID: 23691095; PMCID: PMC3656905.
Auld F, Maschauer EL, Morrison I, Skene DJ, Riha RL. Evidence for the efficacy of melatonin in the treatment of primary adult sleep disorders. Sleep Med Rev. 2017 Aug;34:10-22. doi: 10.1016/j.smrv.2016.06.005. Epub 2016 Jul 20. PMID: 28648359.
Li T, Jiang S, Han M, Yang Z, Lv J, Deng C, Reiter RJ, Yang Y. Exogenous melatonin as a treatment for secondary sleep disorders: A systematic review and meta-analysis. Front Neuroendocrinol. 2019 Jan;52:22-28. doi: 10.1016/j.yfrne.2018.06.004. Epub 2018 Jun 15. PMID: 29908879.
Siah KT, Wong RK, Ho KY. Melatonin for the treatment of irritable bowel syndrome. World J Gastroenterol. 2014 Mar 14;20(10):2492-8. doi: 10.3748/wjg.v20.i10.2492. PMID: 24627586; PMCID: PMC3949259.
Takada M, Nishida K, Gondo Y, Kikuchi-Hayakawa H, Ishikawa H, Suda K, Kawai M, Hoshi R, Kuwano Y, Miyazaki K, Rokutan K. Beneficial effects of Lactobacillus casei strain Shirota on academic stress-induced sleep disturbance in healthy adults: a double-blind, randomised, placebo-controlled trial. Benef Microbes. 2017 Apr 26;8(2):153-162. doi: 10.3920/BM2016.0150. PMID: 28443383.
Marotta A, Sarno E, Del Casale A, Pane M, Mogna L, Amoruso A, Felis GE, Fiorio M. Effects of Probiotics on Cognitive Reactivity, Mood, and Sleep Quality. Front Psychiatry. 2019 Mar 27;10:164. doi: 10.3389/fpsyt.2019.00164. PMID: 30971965; PMCID: PMC6445894.
Romijn AR, Rucklidge JJ, Kuijer RG, Frampton C. A double-blind, randomized, placebo-controlled trial of Lactobacillus helveticus and Bifidobacterium longum for the symptoms of depression. Aust N Z J Psychiatry. 2017 Aug;51(8):810-821. doi: 10.1177/0004867416686694. Epub 2017 Jan 10. PMID: 28068788; PMCID: PMC5518919.
Nakakita Y, Tsuchimoto N, Takata Y, Nakamura T. Effect of dietary heat-killed Lactobacillus brevis SBC8803 (SBL88™) on sleep: a non-randomised, double blind, placebo-controlled, and crossover pilot study. Benef Microbes. 2016 Sep;7(4):501-9. doi: 10.3920/BM2015.0118. Epub 2016 Mar 25. PMID: 27013460.
Torquati L, Mielke GI, Brown WJ, Kolbe-Alexander T. Shift work and the risk of cardiovascular disease. A systematic review and meta-analysis including dose-response relationship. Scand J Work Environ Health. 2018 May 1;44(3):229-238. doi: 10.5271/sjweh.3700. Epub 2017 Dec 16. PMID: 29247501.
Torquati L, Mielke GI, Brown WJ, Burton NW, Kolbe-Alexander TL. Shift Work and Poor Mental Health: A Meta-Analysis of Longitudinal Studies. Am J Public Health. 2019 Nov;109(11):e13-e20. doi: 10.2105/AJPH.2019.305278. Epub 2019 Sep 19. PMID: 31536404; PMCID: PMC6775929.
Asgari Mehrabadi M, Azimi I, Sarhaddi F, Axelin A, Niela-Vilén H, Myllyntausta S, Stenholm S, Dutt N, Liljeberg P, Rahmani AM. Sleep Tracking of a Commercially Available Smart Ring and Smartwatch Against Medical-Grade Actigraphy in Everyday Settings: Instrument Validation Study. JMIR Mhealth Uhealth. 2020 Nov 2;8(10):e20465. doi: 10.2196/20465. PMID: 33038869; PMCID: PMC7669442.
de Zambotti M, Rosas L, Colrain IM, Baker FC. The Sleep of the Ring: Comparison of the ŌURA Sleep Tracker Against Polysomnography. Behav Sleep Med. 2019 Mar-Apr;17(2):124-136. doi: 10.1080/15402002.2017.1300587. Epub 2017 Mar 21. PMID: 28323455; PMCID: PMC6095823.

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How to Fix Sleep Schedules Naturally: 6 Tips to Help - Probios 3 M — **Triple Therapy Probiotic Bundle**

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