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The Peter Attia Drive #298 · March 18, 2024 · 190m

Matthew Walker: Sleep Masterclass — Protocols and New Science

Matthew Walker PhD returns for a comprehensive sleep masterclass covering the latest research on sleep stages, circadian biology, sleep aids, alcohol, and practical protocols for optimizing sleep quality.

This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.

Highlights

Alcohol is the most misunderstood sleep disruptor — it sedates you but does not produce restorative sleep
Walker presents evidence that alcohol abolishes REM sleep and fragments sleep architecture. A nightcap feels like it helps you sleep but actually prevents the deepest and most restorative sleep phases.
Temperature is the most powerful and underutilized lever for sleep quality
Walker argues that core body temperature drop is the primary signal that initiates sleep. Manipulating ambient temperature (cool bedroom, warm bath before bed) is more effective than most sleep supplements.
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