#233 - AMA #42: Optimizing sleep - bedtime routine, molecule regimen, sleep trackers, sauna, & more
This AMA episode features Peter Attia, MD, discussing optimizing sleep. He covers his pre-bedtime routine, sauna use, current regimen of medicines and supplements for sleep, and the pros and cons of sleep wearables.
Deep Dive Analysis
9 Topic Outline
Introduction to Sleep Optimization
Impact of Alcohol on Sleep Quality
Effect of Meal Timing and Hunger on Sleep
Peter's Evolving View and Use of Sauna
Sauna Routine and Risk-Reward Considerations
Comparing Dry vs. Infrared Saunas and Alternatives
Importance of Flexibility in Sleep Habits
Navigating Changing Scientific Information
Reducing Pre-Bedtime Stimulation
3 Key Concepts
Healthy User Bias
This refers to the tendency in observational studies for people who engage in a healthy behavior to also have other healthy habits, making it difficult to isolate the true benefits of the specific behavior being studied. Peter initially considered this when evaluating the epidemiological benefits of sauna use.
Scientific Process & Uncertainty
Science rarely produces absolute certainty; instead, experiments increase the probability of one idea being more likely than another. This means most scientific findings exist in shades of gray, requiring an open mind and flexibility to adapt one's views as new information emerges.
Opportunity Cost (in health)
In the context of health, opportunity cost is the value of the next best alternative that must be foregone when choosing a particular action. For example, the time spent in a sauna has an opportunity cost, as that hour could have been used for other potentially beneficial activities like exercise or additional sleep.
6 Questions Answered
Alcohol makes it very difficult to achieve good sleep, even when consumed several hours before bed. It reduces sleep quality by decreasing deep and REM sleep in favor of light sleep, and leads to more frequent wake-ups throughout the night.
Eating dinner earlier and going to bed with a slight hunger can positively impact sleep quality. Peter aims for approximately three hours between finishing his last meal and going to bed.
Sauna use, particularly dry sauna, has been epidemiologically linked to reductions in cardiovascular mortality and dementia, and Peter has empirically found it significantly improves his sleep. It also serves as a forced period of winding down before bed.
It is crucial to be flexible and view sleep habits as general guidelines rather than strict rules. Being overly rigid or obsessive about sleep can create psychological stress that may be more detrimental than beneficial.
It's important to prioritize seeking the truth over being 'right' and to understand that science deals in probabilities, not absolute certainties. This perspective allows for greater ease in adapting one's views as new information and evidence become available.
Yes, for individuals who do not have access to a sauna, a warm bath or hot shower before bed can still provide some sleep-enhancing benefits, and it is worth experimenting with these activities.
10 Actionable Insights
1. Avoid Alcohol Before Bed
To optimize sleep quality, avoid consuming alcohol in the evening, as even a few drinks several hours before bedtime can reduce deep and REM sleep and increase wake-ups.
2. Eat Dinner Early & Light
Aim to finish dinner approximately three hours before going to bed, and consider going to sleep feeling slightly hungry, as a low glucose empty stomach has been observed to positively impact sleep quality.
3. Reduce Pre-Bedtime Stimulation
Minimize stimulation before bed by completing tasks like flossing and brushing teeth before any relaxing routines (like sauna), then proceed directly to bed in the dark without engaging with screens or bright lights.
4. Utilize Sauna for Sleep
Incorporate sauna use (e.g., 15 minutes, cold plunge, then 20-25 minutes at 198°F) at least 4-6 nights a week before bed, as it has empirically shown significant positive impacts on sleep quality. If a sauna isn’t available, a warm bath or hot shower before bed can also offer similar sleep benefits.
5. Be Flexible with Routines
Treat sleep optimization guidelines as general principles rather than rigid rules, allowing for flexibility and occasional deviation to avoid psychological stress that can cause more harm than good.
6. Experiment with Sleep Protocols
Actively test different sleep-related activities and protocols multiple times to determine what specifically works best for your individual physiology and preferences, as outcomes can vary from person to person.
7. Consider Sauna Risk & Cost
Before incorporating sauna, assess potential health risks by consulting a doctor, especially if you have underlying conditions, and weigh the opportunity cost (e.g., time, financial investment) against its benefits.
8. Prioritize Exercise Over Sauna
When evaluating health levers, consider an hour of exercise to be more valuable for overall health benefits than an hour of sauna, if you must choose between the two.
9. Anchor to Truth, Not Being Right
Adopt a mindset anchored to seeking truth rather than always being right, which makes it easier to accept and adapt to changes in scientific understanding and new information.
10. Dry Sauna Preferred for Literature
While both infrared and dry saunas offer benefits, dry saunas are preferred if space allows, as the majority of the existing scientific literature on sauna benefits is based on dry sauna use.
4 Key Quotes
Very difficult to have a good night's sleep if you have alcohol in the proximity of bedtime or even if you have two or three drinks several hours removed from bedtime it still will linger and that'll manifest itself in a number of ways but probably most notably is kind of a reduction in the quality of sleep.
Peter Attia
I just hope people can interpret what I'm saying as guidelines that we try to stick to but we have the flexibility to deviate.
Peter Attia
If you anchor to being right you can sometimes get the right answer but if that answer changes it becomes difficult to change.
Peter Attia
Even the best experiments don't produce certainty they just increase the probability of one idea being more likely than another.
Peter Attia
1 Protocols
Peter's Pre-Bedtime Routine for Optimized Sleep
Peter Attia- Avoid alcohol in the evening or in close proximity to bedtime.
- Eat dinner early, aiming for approximately three hours between the last meal and bedtime, and go to bed feeling slightly hungry.
- Engage in a sauna routine at least four, and ideally five or six, nights a week (e.g., 15 minutes in a 198°F sauna, followed by a cold plunge, then another 20-25 minutes in the sauna).
- Perform hygiene tasks like flossing and brushing teeth before entering the sauna.
- After completing the sauna routine, go directly to bed in the dark, avoiding any computer or phone screens or bright lights.