Patrick sleep protocol: How Rhonda Patrick’s heat routine may deepen sleep for men

Timed passive heat exposure from a warm bath or shower 1 to 2 hours before bed can help adults fall asleep faster and sleep more efficiently, likely because of the body cooling that follows.^[1] The “patrick sleep” approach is simple enough to try at home, but it works best when you match the temperature, timing, and recovery to your physiology.

Key takeaways

• According to a 2019 systematic review and meta-analysis, a warm shower or bath 1 to 2 hours before bedtime was associated with better self-rated sleep quality, better sleep efficiency, and faster sleep onset compared with no heating.^[1]
• Rhonda Patrick’s protocol is commonly described as a sauna routine around 170 to 180 degrees Fahrenheit for about 15 to 20 minutes, done 1 to 2 hours before bed. Treat this as a personal routine rather than an evidence-based sleep target, and adjust for safety and tolerance.
• In the 2019 review, water at about 104 to 108 degrees Fahrenheit (40 to 42.5°C), scheduled 1 to 2 hours before bed, shortened the time to fall asleep, even when the session lasted as little as 10 minutes.^[1]
• Some men feel transient alertness after intense heat exposure. The mechanism is not fully established, and leaving enough time to cool down before bed may help.
• If chronic poor sleep overlaps with symptoms that suggest testosterone deficiency, guidelines call for compatible symptoms plus low morning testosterone confirmed on repeat testing.^[2] Free testosterone needs an accurate assay, such as equilibrium dialysis, and is most useful when SHBG is altered or total testosterone is borderline. A single number should not drive treatment decisions.^[3]

Why the patrick sleep protocol matters for men

Sleep is not just rest. In men, deep sleep is a large part of overnight recovery. Slow wave sleep is the deepest stage of non REM sleep. A 2013 review in Physiological Reviews describes it as the stage in which recently learned memories are reactivated and consolidated into long-term memory.^[4]

According to a 2019 systematic review and meta-analysis of 17 studies, passive body heating with a warm shower or bath at 40 to 42.5°C improved sleep.^[1] Sessions scheduled 1 to 2 hours before bedtime shortened the time it took to fall asleep.^[1] Passive body heating means raising body temperature without exercise, such as with a sauna or hot bath. The aim is to warm up well before bed and then let the body cool into sleep.

The “patrick sleep” framing turns general advice into a routine. The protocol associated with Rhonda Patrick, Ph.D., pairs deliberate heat exposure 1 to 2 hours before bed with a cooldown, with the aim of deepening slow wave sleep. Its rationale also points to growth hormone, growth hormone releasing hormone, and prolactin, which interact with sleep biology. Direct evidence that heat deepens slow wave sleep through these hormones is limited.

How heat exposure before bed may improve sleep

1) It leverages normal temperature biology

Core body temperature is your internal heat level, and it normally drops at night as the brain prepares for sleep. The authors of the 2019 review concluded that their findings fit a mechanism in which warm water bathing increases blood flow to the palms and soles, helping the body release heat and deepening the evening decline in core temperature.^[1]

Vasodilation is the widening of blood vessels that increases blood flow to the skin. A hot bath or sauna promotes vasodilation, which makes it easier to release heat once the session ends.

2) It may nudge slow wave sleep through growth hormone signaling

Growth hormone is a pituitary hormone that supports tissue repair and metabolic regulation. Growth hormone releasing hormone (GHRH) is a hypothalamic signal that stimulates growth hormone release. A 2004 review in Sleep Medicine Reviews reports that a significant portion of daily growth hormone secretion is associated with deep non REM sleep, and that in several species GHRH promotes deep sleep while suppressing GHRH reduces it.^[5] The protocol’s rationale holds that heat exposure can trigger hormones associated with deeper sleep. That step has less direct evidence than the link between growth hormone and deep sleep itself.

3) It may influence prolactin, another sleep linked hormone

Prolactin is a pituitary hormone best known for reproductive roles, but it also rises during sleep and interacts with stress and immune signaling. The patrick sleep rationale counts prolactin among the sleep promoting hormones that can increase with heat exposure. Small human studies of sauna use have reported endocrine changes during or after heat stress, including in prolactin and growth hormone. The size and consistency of these changes vary by protocol and individual fitness.

The patrick sleep strategy is not a hormone therapy. It is a behavioral change that may shift some sleep related hormones in some men, alongside the effects of stress and sleep loss.

4) The cooldown may prevent the “heat wired” effect

Some men report a short-lived “second wind” after intense heat exposure, and the mechanism likely varies from person to person.

This is why the patrick sleep protocol emphasizes timing and cooling. If you finish a hot session and get straight into bed, you may be trying to sleep while your body is still actively shedding heat. Leaving enough time between heat and bedtime can help. You will often hear 65 degrees Fahrenheit as a common bedroom target, but the best setting is the one that keeps you from waking up sweaty or shivering.

Conditions linked to poor deep sleep in men

The patrick sleep protocol is aimed at sleep quality, not just sleep duration. If deep sleep stays low, the cause is often bigger than the bedtime routine. Common, clinically relevant issues in men that can reduce slow wave sleep or fragment the night include the following.

• Insomnia: Chronic trouble falling asleep or staying asleep. It can blunt deep sleep and increase light sleep. In pooled studies, warm water bathing 1 to 2 hours before bed shortened the time to fall asleep. That makes it a reasonable thing to try for trouble falling asleep, although the evidence base is small and does not replace insomnia treatment.^[1]
• Obstructive sleep apnea: A condition where the upper airway collapses during sleep, causing breathing pauses and micro awakenings. It is common in men who snore, have a larger neck circumference, or carry central body fat. Heat exposure does not treat sleep apnea. If apnea is present, it usually needs a sleep study and targeted therapy.
• High stress load: Persistent stress can keep the nervous system in a high alert state. Heat exposure feels relaxing for some men, but others find it stimulating, especially at high temperatures or when dehydrated.
• Possible testosterone deficiency: Low testosterone can show up as low libido, low morning erections, depressed mood, reduced training response, and persistent fatigue. A 2016 International Consultation on Sexual Medicine review in The Journal of Sexual Medicine reports that testosterone has a primary role in male sexual desire and arousal, and that testosterone therapy in hypogonadal men can improve low desire and erectile dysfunction.^[6] Sleep and testosterone influence each other. A small 2011 study in JAMA found that one week of sleep restriction lowered daytime testosterone levels in healthy young men.^[7] Chronic sleep loss may therefore worsen a borderline hormone picture.

The evidence for heat before bed comes mainly from warm baths and showers. The authors of the 2019 review called it limited, especially on optimal timing, duration, and mechanism.^[1] A 2018 systematic review of regular dry sauna bathing found 40 studies, only 13 of them randomized and most with fewer than 40 participants.^[8] It noted one small study of 10 participants in which sauna use disrupted sperm production, an effect that reversed after sauna use stopped.^[8] Men who are trying to conceive may want to keep that in mind. Individual response matters, and men with cardiovascular disease or unstable blood pressure should talk with a clinician before regular high heat exposure.

Symptoms and signals to watch for

If you are trying the patrick sleep approach, track how you feel at night and the next day.

• You feel sleepy sooner when you get into bed, with less tossing and turning.
• You wake up fewer times in the first half of the night, when slow wave sleep is typically heavier.
• You notice better training recovery, less soreness, or more stable mood the next day.
• You fall asleep faster but wake up too early and cannot get back to sleep.
• You feel “wired” after heat exposure, with a racing mind or elevated heart rate in bed.
• You wake up sweaty or dehydrated, with leg cramps or a morning headache.
• You snore loudly, wake up choking, or your partner notices breathing pauses. That is a red flag for sleep apnea.
• You have low libido, fewer morning erections, or a persistent drop in motivation and strength. Consider a hormone workup if this persists.

Improvements in sleep onset and next day recovery suggest your timing and cooldown are working. Feeling wired, palpitations, dizziness, or more awakenings usually mean the session is too hot, too long, or too close to bedtime. Stop the protocol if you feel faint, develop chest pain, have a persistently rapid heart rate, or your sleep worsens for several nights in a row. Seek medical evaluation if you have snoring with choking awakenings, marked daytime sleepiness, recurrent morning headaches, or ongoing symptoms that could reflect an underlying sleep disorder or hormone problem.

What to do about it

A simple three step plan keeps the patrick sleep protocol safe and measurable.

1. Step 1: get a baseline and screen for the big problems: Track bedtime, wake time, awakenings, caffeine, alcohol, and workouts for 14 nights. If you snore, have morning headaches, or feel sleepy while driving, ask your doctor about a sleep study, because obstructive sleep apnea can mimic poor recovery. If symptoms also suggest low testosterone and persist, ask for two morning tests on separate days, as guidelines recommend.^[2] LH and FSH belong in the same workup, because they show whether the problem starts in the testes or in the brain’s signaling.^[3]
2. Step 2: run the patrick sleep heat protocol for 10 to 14 days: Choose the option you can do consistently.
   • Sauna option: A commonly discussed routine is roughly 170 to 180 degrees Fahrenheit for about 15 to 20 minutes, completed 1 to 2 hours before bed. Start lower and shorter if you are new to sauna, and prioritize a cooldown.
   • Bath option: In the 2019 review, water at about 104 to 108 degrees Fahrenheit shortened the time to fall asleep when sessions were scheduled 1 to 2 hours before bed and lasted as little as 10 minutes.^[1] A thermometer helps if you want more consistency.

   After heat exposure, give yourself time to cool down and keep the bedroom comfortably cool. If you wake up thirsty or cramped, reduce heat intensity, shorten the session, and pay attention to hydration and electrolytes.

3. Step 3: escalate to targeted treatment if symptoms persist: Your sleep may still be poor after you fix your schedule, caffeine timing, and alcohol and trial the patrick sleep protocol. If so, work with a clinician. If repeat morning testosterone is low, LH and FSH help define the pattern. High LH with low testosterone suggests primary hypogonadism, where the testes are not responding and testosterone therapy is typically needed. Low or normal LH with low testosterone suggests secondary or functional hypogonadism, where the testes are intact.^[3] In that pattern, treatments that raise the body’s own LH, such as enclomiphene, are one option. Discuss fertility goals early. Testosterone therapy suppresses sperm production and should not be prescribed to men who are trying to conceive.^[2] When testosterone therapy is clinically indicated, it requires careful dosing, follow-up, and attention to cardiovascular risk factors and hematocrit.

Veedma offers testing that includes total and free testosterone measured by LC-MS/MS with LH and FSH, or a review of labs you already have, interpreted by licensed providers. In Veedma’s protocol, persistent symptoms with free testosterone below 100 pg/mL can lead to treatment with enclomiphene, or the enclomiphene plus tadalafil tablet, when appropriate. Enclomiphene is not an FDA-approved drug; it is prescribed after a provider confirms the diagnosis and is compounded by a licensed U.S. pharmacy.

Myth vs fact

Myth: Heat before bed always keeps you awake.

Fact: According to a 2019 systematic review, a warm bath or shower scheduled 1 to 2 hours before bed was associated with faster sleep onset and better self-rated sleep quality, likely because it helps the body cool afterward.^[1]

Myth: You need a sauna for the patrick sleep protocol.

Fact: A hot bath or warm shower can work, and it is often easier to control at home. The key is the timing and the cooldown.^[1]

Myth: Hotter and longer is always better.

Fact: More heat can backfire by increasing dehydration or post heat alertness. Start conservatively and adjust based on next day energy and nighttime awakenings.

Myth: If I do patrick sleep, I do not need to worry about sleep apnea.

Fact: Heat exposure does not treat obstructive sleep apnea. Loud snoring, choking awakenings, and daytime sleepiness should trigger a clinical evaluation.

Myth: Bad sleep and low testosterone are separate issues.

Fact: In a small study of healthy young men, one week of sleep restriction lowered daytime testosterone.^[7] Low testosterone symptoms such as fatigue also overlap with sleep loss. Persistent symptoms call for an assessment of symptoms together with confirmed testosterone testing, not guesswork.^[2]

Bottom line

The patrick sleep protocol is a practical way for men to use heat exposure and a deliberate cooldown to support faster sleep onset. Evidence that it deepens slow wave sleep is less direct. Results depend on timing, a tolerable temperature, and honest tracking. Your sleep may be chronically poor, or you may have red flags like snoring and daytime sleepiness or symptoms that suggest testosterone deficiency. In that case, use the protocol as a tool, not a substitute for a full evaluation with a qualified clinician (such as a sleep specialist, primary care physician, endocrinologist, or urologist).

References

1. Haghayegh S, Khoshnevis S, Smolensky MH, et al. Before-bedtime passive body heating by warm shower or bath to improve sleep: A systematic review and meta-analysis. Sleep Med Rev. 2019;46:124-135. PMID: 31102877
2. Mulhall JP, Trost LW, Brannigan RE, et al. Evaluation and Management of Testosterone Deficiency: AUA Guideline. J Urol. 2018;200:423-432. PMID: 29601923
3. Bhasin S, Brito JP, Cunningham GR, et al. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2018;103:1715-1744. PMID: 29562364
4. Rasch B, Born J. About sleep’s role in memory. Physiol Rev. 2013;93:681-766. PMID: 23589831
5. Obal F, Krueger JM. GHRH and sleep. Sleep Med Rev. 2004;8:367-77. PMID: 15336237
6. Corona G, Isidori AM, Aversa A, et al. Endocrinologic Control of Men’s Sexual Desire and Arousal/Erection. J Sex Med. 2016;13:317-37. PMID: 26944463
7. Leproult R, Van Cauter E. Effect of 1 week of sleep restriction on testosterone levels in young healthy men. JAMA. 2011;305:2173-4. PMID: 21632481
8. Hussain J, Cohen M. Clinical Effects of Regular Dry Sauna Bathing: A Systematic Review. Evid Based Complement Alternat Med. 2018;2018:1857413. PMID: 29849692