Sleep on Easy Mode
The protocol I'd give my younger self. Five free moves you can run tonight, plus the honest science of why most of what you've been told about sleep is overstated.
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If you do nothing else from the video, do these. Everything else is icing.
The five moves that do most of the work.
Last caffeine by noon
Caffeine half-life is 5–6 hours. A noon coffee is still 25–50% on board at bedtime. The Drake 2013 study lost subjects an hour of sleep when caffeine was 6 hours pre-bed
Source: Drake 2013, J Clin Sleep Med
Bedroom under 70°F
Your body has to drop core temperature two degrees Fahrenheit to initiate sleep. If the room is too warm, the drop never happens cleanly
Source: Okamoto-Mizuno 2012, J Physiol Anthropol
Eight hours in bed. Every night
Walker calls it an eight-hour sleep opportunity, eight hours in bed, not eight hours asleep. Real sleep time inside that window is typically 6.5–7.5 hours. The window is what you control.
Source: Hirshkowitz 2015, Sleep Health
Same time. Seven days a week
Your circadian rhythm doesn't know it's Saturday. Bouncing your schedule on weekends costs you a Monday version of jet lag.
Source: Roenneberg 2003, J Biol Rhythms
Dark room
Blackout curtains, no bedside lamp, no bathroom light visible. Light in the second half of the night degrades melatonin in ways you don't feel and don't notice.
Source: Walker, Why We Sleep, 2017
What the video actually says.
Most of what gets shared as "sleep science" on the internet is downstream of a single book that has problems. Here's what we said, with the receipts.
Under-sleep doesn't feel like under-sleep. Van Dongen restricted people to six hours a night for two weeks. By the end, they had cognitive impairment equivalent to two nights of total sleep deprivation. The cruel part: they didn't notice. → Van Dongen 2003, Sleep journal
Walker's framework is right. His bigger numbers don't all hold up. We cite Walker for the framework. For specific claims we go to the original papers. → See full citation library below
Sleep is officially a cardiovascular risk factor. The American Heart Association formally classified short sleep as a CV risk factor on par with blood pressure in 2016. The Mendelian randomization study in 2019 confirmed it's causal, not just correlated. → StOnge 2016 + Daghlas 2019
Cancer and sleep is more nuanced than usually presented. The strong evidence is for shift work specifically — IARC classified it as a probable human carcinogen in 2010 and reaffirmed in 2019. The broader "less sleep causes cancer" claim is much weaker. → IARC 2019, Lancet Oncology
Polyphasic sleep was a fad. The 2021 National Sleep Foundation expert panel
found polyphasic patterns are associated with worse health outcomes than normal sleep. → Section 5 — The honest landscape (takeaways) Weaver 2021, Sleep Health
True genetic short sleepers exist in under 1% of the population. If you think you do fine on five hours, statistically you almost certainly don't. → He 2009, Science
Magnesium glycinate is the supplement worth trying. The rest of the supplement aisle has modest-at-best effects. We cover them all in the protocol PDF. → Mah & Pitre 2021, BMC Complement Med Ther
Magnesium glycinate is the one Brent takes. Here's the rest of the shelf, with what the evidence says and what he'd do with each.
Magnesium glycinate is the one Brent takes. Here's the rest of the shelf, with what the evidence says and what he'd do with each.
Feature |
Verdict |
Dose & timing |
Duration / cycling |
Brand |
|---|---|---|---|---|
Magnesium glycinate |
Tier 1 - start here |
200–400mg, 30–60 min before bed |
Nightly, no cycling |
|
Glycine |
Tier 1 |
3g powder, before bed |
Nightly, no cycling |
|
L-theanine |
Tier 1 - for an anxious mind |
200mg (Suntheanine), before bed |
Nightly, no cycling |
|
Phosphatidylserine |
Tier 2 - cortisol 3 AM wake-up |
300–600mg with dinner |
Ongoing, no cycling |
|
Ashwagandha |
Tier 2 - chronic stress |
300–600mg/day, evening |
Cycle: 8–12 weeks on, 2–4 off |
|
PharmaGABA |
Tier 2 - anxious onset |
100–250mg before bed |
As-needed or nightly |
|
Tart cherry |
Tier 2 |
1oz concentrate before bed |
Nightly, no cycling |
|
Melatonin |
Tier 2 - travel only |
0.3–1mg, NOT 5–10mg |
Situational, not nightly |
|
Apigenin |
Tier 3 - skip-ish |
50mg before bed |
Nightly, no cycling |
Any third-party-tested |
Valerian |
Tier 3 - skip |
300–600mg extract |
Cycle if used (tolerance) |
--- |
Chamomile / lemon balm |
Tier 3 - very mild |
Tea |
--- |
--- |
5-HTP |
Tier 3 - caution |
50–100mg |
--- |
Not with SSRIs |
Some links in this section are affiliate links. If you buy through them, Sage may earn a small commission. We only link to products Brent actually uses or has tried. It doesn't change the price you pay.
Diagnose your sleep problem.
Diagnose your sleep problem.
Onset — "I can't fall asleep"
Body tired, brain won't shut off. Most often: caffeine still on board, room too warm, screensin the last hour, or stress with open loops.
The lying-in-bed-staring-at-the-ceiling kind. Check, in order:
- Caffeine cutoff at noon (most common cause)
- Bedroom temperature under 70°F
- Phone in another room an hour before bed
- 4-7-8 breathing (inhale 4 sec, hold 7, exhale 8 — three cycles) for racing-mind onset
- Brain-dump on paper if it's open work loops
- Move dinner earlier and lighter if late eating
- Move training earlier if you're sensitive to late workouts
Supplements specifically for onset:
- Magnesium glycinate (most evidence-backed)
- L-theanine (specifically for anxious arousal)
- Low-dose melatonin 0.3mg (circadian shift only, not nightly)
The CBT-I move: if you've been in bed 20 minutes and can't sleep, get up. Sit in dim light, read something boring, return when sleepy. Breaks the bed-equals-awake association. If onset issues are a multi-week pattern, that's chronic insomnia. CBT-I is your answer. See the "If you have chronic insomnia" section below.
Maintenance — "I wake up at 2 AM and can't get back to sleep"
Fall asleep fine, wake up 3–4 hours later, stare at the ceiling. Most often: alcohol, latedinner, room warming up, or stress rumination.
The 2 AM ceiling stare. Check, in order:
- Alcohol within 4 hours of bed? Stop entirely. #1 cause in the general population.
- Heavy dinner late? Move dinner 3+ hours before bed, make it lighter.
- Room warming up overnight? Adjust HVAC schedule.
- Stress / rumination? Don't reach for the phone, don't watch the clock. Try 4-7-8
breathing first. If not back asleep in 20 minutes, get up, dim light, boring book, return when sleepy
Supplements specifically for maintenance:
- Phosphatidylserine 300–600mg with dinner (if cortisol-driven wake-up — high-stress
day, 3 AM wake) - Ashwagandha 300–600mg evening (if rumination-driven)
- Magnesium glycinate (modest help, same dose)
If maintenance issues happen 3+ nights/week for 3+ months, you have chronic insomnia. See the "If you have chronic insomnia" section.
Watch for apnea. Heavy snoring + waking up gasping + morning headaches = sleep study.
Don't wait.
Architecture — "I sleep the hours but the quality is off"
You're in bed 8 hours, you sleep through, but the wearable shows low deep sleep or low REM. Most technical and least intuitive category.
This is the wearable-revealed problem. Most people don't know they have it until the data shows them.
If your deep sleep is low (under ~60 min for adults):
Deep sleep is concentrated in the first half of the night. The compressors:
- Alcohol — especially crushes early-night deep sleep. Cut it.
- Late workout — body temp still up at bedtime. Move training earlier.
- Heavy late dinner. Move earlier or lighter.
- Room too warm in the first 2 hours of the night.
- High evening cortisol / stress.
Supplements: magnesium glycinate, glycine 3g, apigenin 50mg (limited evidence). None are transformative on their own.
If your REM is low (under ~90 min for adults):
REM is concentrated in the back half of the night. The compressors:
- Alcohol massively suppresses REM. Single biggest variable.
- Cutting sleep short — waking at 5 AM instead of 7 costs most of your REM.
- SSRIs and some other medications suppress REM. Talk to your doctor.
- Irregular schedule.
- Chronic high stress.
Supplements: honestly, none. The levers for REM are alcohol elimination and full sleep duration. Don't supplement your way past those.
If both are low: general sleep deprivation pattern. Lock the A-tier and B-tier from the
protocol. Test for apnea if symptoms warrant. Give it 2–4 weeks.
Are you getting enough sleep, or more importantly, the right sleep?
Sleep is a skill you can learn. Like cooking. Like driving. Like running a business. With practice you get better at it.
If your gut answer above was “I’m naturally a bad sleeper”, that’s the fixed-identity narrative that keeps people stuck. It’s not true. People who sleep well aren’t biologically different. They’ve practiced different behaviors for longer.
The skill has four sub-skills:
- Allocating enough time in bed to actually sleep eight hours (the “sleep opportunity”)
- Building an environment that lets the body do what it needs to do (cool, dark, quiet)
- Eliminating the obvious things that wreck the system (late caffeine, late alcohol, late meals, scrolling at midnight)
- Adjusting your wake-time and your wind-down so they’re built into your day, not optional add-ons that depend on your willpower
Chronotypes
Not everyone is wired the same, so the skill set is different for each individual. Some people are morning people, some people are night, and many in between. If you're a night owl with a morning lark sleep routine, you're not going to feel right.
You don't need enough sleep, you need the right sleep.
Get the version of this protocol that fits your wiring.
Brent's a morning lark. His 5:30 AM wake-up matches his biology. If yours is different, the principle still applies,same time every day, just a different time. Take the quiz and we'll send you a personalized PDF based on whether you're a morning lark, a night owl, or somewhere in between.
Five questions. Less than a minute. No "right" answer.
Quiz based on the reduced Morningness-Eveningness Questionnaire, developed by Adan & Almirall (1991) from the original by Horne & Östberg (1976). Used here for educational purposes.
Build a healthier next decade with us.
Every study cited in the video.
Thirty-eight peer-reviewed papers. Every claim Brent makes on camera has one of them behind it. Pull the abstract, read the methods, decide for yourself.
Foundational sleep science
- Walker M. Why We Sleep. Scribner, 2017.
- Diekelmann S, Born J. The memory function of sleep. Nat Rev Neurosci. 2010;11(2):114–126.
- Rasch B, Born J. About sleep's role in memory. Physiol Rev. 2013;93(2):681–766.
- Hirshkowitz M, et al. National Sleep Foundation's sleep time duration recommendations. Sleep Health. 2015;1(1):40–43.
Sleep loss and impairment
- Dawson D, Reid K. Fatigue, alcohol and performance impairment. Nature. 1997;388(6639):235.
- Williamson AM, Feyer A-M. Moderate sleep deprivation produces impairments in cognitive and motor performance equivalent to legally prescribed levels of alcohol intoxication. Occup Environ Med. 2000;57(10):649–655.
- Van Dongen HPA, et al. The cumulative cost of additional wakefulness: dose-response effects on neurobehavioral functions and sleep physiology from chronic sleep restriction and total sleep deprivation. Sleep. 2003;26(2):117–126.
Caffeine, alcohol, temperature
- Drake C, et al. Caffeine effects on sleep taken 0, 3, or 6 hours before going to bed. J Clin Sleep Med. 2013;9(11):1195–1200. DOI: 10.5664/jcsm.3170
- Ebrahim IO, et al. Alcohol and sleep I: effects on normal sleep. Alcohol Clin Exp Res. 2013;37(4):539–549.
- Okamoto-Mizuno K, Mizuno K. Effects of thermal environment on sleep and circadian rhythm. J Physiol Anthropol. 2012;31(1):14. DOI: 10.1186/1880-6805-31-14
Cardiovascular disease
- Cappuccio FP, et al. Sleep duration predicts cardiovascular outcomes: a systematic review and meta-analysis of prospective studies. Eur Heart J. 2011;32(12):1484–1492.
- Yin J, et al. Relationship of sleep duration with all-cause mortality and cardiovascular events: a systematic review and dose-response meta-analysis. J Am Heart Assoc. 2017;6(9):e005947.
- St-Onge MP, et al. Sleep duration and quality: impact on lifestyle behaviors and cardiometabolic health (AHA scientific statement). Circulation. 2016;134(18):e367–e386.
- Daghlas I, et al. Sleep duration and myocardial infarction. J Am Coll Cardiol. 2019;74(10):1304–1314.
Cancer and shift work
- IARC. Monographs Vol. 98: Painting, Firefighting, and Shiftwork. International Agency for Research on Cancer, 2010.
- IARC Monographs Vol. 124 Group. Carcinogenicity of night shift work. Lancet Oncol. 2019;20(8):1058–1059.
- Sigurdardottir LG, et al. Sleep disruption among older men and risk of prostate cancer. Cancer Epidemiol Biomarkers Prev. 2013;22(5):872–879.
- Hurley S, et al. Sleep duration and cancer risk in women. Cancer Causes Control. 2015;26(7):1037–1045.
Alzheimer's and brain clearance
- Xie L, et al. Sleep drives metabolite clearance from the adult brain. Science. 2013;342(6156):373–377.
- Spira AP, et al. Self-reported sleep and β-amyloid deposition in community-dwelling older adults. JAMA Neurol. 2013;70(12):1537–1543.
- Lim AS, et al. Sleep fragmentation and the risk of incident Alzheimer's disease and cognitive decline in older persons. Sleep. 2013;36(7):1027–1032.
- Bubu OM, et al. Sleep, cognitive impairment, and Alzheimer's disease: a systematic review and meta-analysis. Sleep. 2017;40(1).
Insomnia treatment — CBT-I
- Trauer JM, et al. Cognitive behavioral therapy for chronic insomnia: a systematic review and meta-analysis. Ann Intern Med. 2015;163(3):191–204.
- Qaseem A, et al. Management of chronic insomnia disorder in adults: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2016;165(2):125–133.
- Christensen H, et al. Effectiveness of an online insomnia program (SHUTi) for prevention of depressive episodes (the GoodNight Study). Lancet Psychiatry. 2016;3(4):333–341.
- Espie CA, et al. Effect of digital cognitive behavioral therapy for insomnia on health, psychological well-being, and sleep-related quality of life. JAMA Psychiatry. 2019;76(1):21–30.
Chronotypes and genetics
- Roenneberg T, Wirz-Justice A, Merrow M. Life between clocks: daily temporal patterns of human chronotypes. J Biol Rhythms. 2003;18(1):80–90.
- Jones SE, et al. Genome-wide association analyses in 128,266 individuals identifies new morningness and sleep duration loci. PLoS Genet. 2016;12(8):e1006125.
- Wittmann M, et al. Social jetlag: misalignment of biological and social time. Chronobiol Int. 2006;23(1–2):497–509.
- He Y, et al. The transcriptional repressor DEC2 regulates sleep length in mammals. Science. 2009;325(5942):866–870. (The genetic short-sleeper mutation.)
The chronotype quiz instrument
- Adan A, Almirall H. Horne & Östberg morningness-eveningness questionnaire: a reduced scale. Pers Individ Dif. 1991;12(3):241–253. (The rMEQ used in the Sage sleep quiz. Original: Horne JA, Östberg O. Int J Chronobiol. 1976;4(2):97–110.)
Supplements
- Abbasi B, et al. The effect of magnesium supplementation on primary insomnia in elderly: a double-blind placebo-controlled clinical trial. J Res Med Sci. 2012;17(12):1161–1169.
- Mah J, Pitre T. Oral magnesium supplementation for insomnia in older adults: a systematic review and meta-analysis. BMC Complement Med Ther. 2021;21(1):125. DOI: 10.1186/s12906-021-03297-z
- Boyle NB, Lawton C, Dye L. The effects of magnesium supplementation on subjective anxiety and stress: a systematic review. Nutrients. 2017;9(5):429. DOI: 10.3390/nu9050429
- Yamadera W, et al. Glycine ingestion improves subjective sleep quality in human volunteers, correlating with polysomnographic changes. Sleep Biol Rhythms. 2007;5(2):126–131.
- Kawai N, et al. The sleep-promoting and hypothermic effects of glycine are mediated by NMDA receptors in the suprachiasmatic nucleus. Neuropsychopharmacology. 2015;40(6):1405–1416.
- Howatson G, et al. Effect of tart cherry juice (*Prunus cerasus*) on melatonin levels and enhanced sleep quality. Eur J Nutr. 2012;51(8):909–916.
- Zhdanova IV, Wurtman RJ, Lynch HJ, et al. Sleep-inducing effects of low doses of melatonin ingested in the evening. Clin Pharmacol Ther. 1995;57(5):552–558. DOI: 10.1016/0009-9236(95)90040-3
- Chandrasekhar K, Kapoor J, Anishetty S. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med. 2012;34(3):255–262.
- Langade D, et al. Efficacy and safety of ashwagandha (Withania somnifera) root extract in insomnia and anxiety: a double-blind, randomized, placebo-controlled study. *Cureus.* 2019;11(9):e5797.
Supplement safety
- Sharma AK, Basu I, Singh S. Efficacy and safety of ashwagandha root extract in subclinical hypothyroid patients: a double-blind, randomized placebo-controlled trial. J Altern Complement Med. 2018;24(3):243–248. DOI: 10.1089/acm.2017.0183 (Basis for the thyroid caution.)
- Philips CA, Valsan A, Theruvath AH, et al. Ashwagandha-induced liver injury-a case series from India and literature review. Hepatol Commun. 2023;7:e0270. DOI: 10.1097/HC9.0000000000000270
Every claim in the video and the protocol traces to one of these papers. Pull the abstract, read the methods, decide for yourself. Where the evidence is thin or preclinical, apigenin, oral GABA crossing the blood-brain barrier, magnesium L-threonate for sleep, we say so rather than dressing it up.