Timing Protocol
When to Take Sleep Optimization — Expert Timing Protocols
Expert-analyzed timing recommendations for sleep optimization based on what 5 longevity researchers say about when, how, and what to take it with.
Quick Timing Guide
Take sleep supplements 30-60 minutes before bed. Delay caffeine 90-120 minutes after waking (Huberman). Last meal 3+ hours before bed (Johnson, Hyman). Stop liquids around 4 PM for uninterrupted sleep (Johnson). Wind-down routine 30-60 minutes before bed with no screens.
Universal Consensus
on Sleep Optimization overall
Full Protocol
Timing
Take sleep supplements 30-60 minutes before bed. Delay caffeine 90-120 minutes after waking (Huberman). Last meal 3+ hours before bed (Johnson, Hyman). Stop liquids around 4 PM for uninterrupted sleep (Johnson). Wind-down routine 30-60 minutes before bed with no screens.
Dosage
Magnesium threonate 145mg + Apigenin 50mg + L-theanine 100-400mg (Huberman's sleep cocktail). Optional: Glycine 2g, GABA 100mg, or Myo-inositol 900mg for middle-of-night waking.
Form
Magnesium threonate or bisglycinate for sleep support (threonate crosses the blood-brain barrier). Apigenin derived from chamomile. Theanine as L-theanine. Hyman also recommends valerian root and glycine.
Notes
Huberman cautions that theanine may cause excessively vivid dreams in some people and should be reduced or eliminated if this occurs. Melatonin is generally not recommended by Huberman or Walker for healthy adults — it provides minimal benefit (only a few extra minutes of sleep) and doses sold commercially are often supra-physiological. Attia notes melatonin can aid sleep initiation in older adults. Johnson uses melatonin specifically for jet lag recovery. All experts agree that behavioral interventions (light, temperature, consistency) should be prioritized over supplements.
Expert Positions
What Each Expert Says About Timing
Huberman is the most prolific source on sleep optimization, with a dedicated six-episode guest series with Dr. Matt Walker, a standalone Sleep Toolkit episode, and multiple episodes covering circadian rhythms, jet lag, dreams, and the sleep-supplement connection. His Sleep Toolkit episode provides the most comprehensive behavioral and supplement protocol: morning sunlight within 30-60 minutes of waking, delaying caffeine 90-120 minutes, avoiding bright light after sunset, evening hot baths for core temperature drop, and the foundational sleep stack of magnesium threonate (145mg), apigenin (50mg), and theanine (100-400mg). He also covers NSDR (non-sleep deep rest) as a recovery tool, nasal breathing during sleep, and the temperature minimum concept for circadian clock shifting.
Unlock the Full Picture
Go beyond the consensus — see exactly what each expert says about sleep optimization.
- Per-expert timing protocols & reasoning
- Interaction warnings & disagreements
- Video citations with timestamps