Sleep & recovery Cognitive performance Stress management

Sleep Optimization Protocol

BBuilding confidence

Worth a test run.

Low commitment8 steps · 4 supplements · 4 habits

Latest evidence update: 2026-12-28

Open as constellation

What this protocol does

A comprehensive sleep protocol combining supplements and behavioral interventions to improve sleep quality, reduce time to fall asleep, and increase deep sleep duration.

What to expect

Synthesized from research on this protocol's components. Individual response varies.

Week 1

Look for: Faster sleep onset, longer time asleep, and better-quality sleep from L-theanine — research finds L-theanine improves sleep latency, sleep efficiency, sleep maintenance, overall subjective sleep quality, and reduces subjective daytime dysfunction.

Not yet expected: Major shifts in sleep architecture beyond efficiency from L-theanine alone — the documented effects are mostly on subjective and basic objective sleep measures.

Backed by 2 studies

Examining the effect of L-theanine on sleep: a systematic review of dietary supplementation trials.
The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis.

Weeks 4–8

Look for: Anxiety symptoms may keep easing — about half of magnesium supplementation studies report reductions in subjective anxiety, which supports calmer evenings and easier wind-down.

: Resolution of leg cramps from magnesium — clinical trials show no significant effect on cramp intensity or frequency in older adults at four weeks.

Expected outcomes

Research outcomes from 1 supplements and habits (3 data points)

Outcome estimates are derived from published research and represent population-level associations, not guaranteed individual results. Consult a healthcare professional before making decisions based on these estimates. Combined effects account for shared biological mechanisms between interventions.

Protocol steps

Morning sunlight exposurehabitSHigh confidence Context-aware

Within 30 min of waking · 10-30 minutes

Sets circadian clock via melanopsin cells — anchors sleep/wake cycle

At latitudes above 50° (e.g., Berlin, Stockholm, Edinburgh) in winter, true morning sunlight intensity is too low for circadian anchoring. Substitute with a 10,000-lux light therapy lamp for 10 minutes at your usual wake time.

Caffeine timing delayhabitEInsufficient evidence

90 min after waking

Allows adenosine to clear naturally — prevents afternoon crash

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Order these supplements

Get everything you need for this protocol delivered to your door.

Magnesium Glycinate

300mg magnesium bisglycinate

L-Theanine

200mg

Apigenin

50mg

Glycine

Schedule this protocol

Questions about Sleep Optimization Protocol

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Research behind the components

Aggregated from the supplements and habits in this protocol; not a composite protocol grade · 428 studies referenced

Referenced studies (428)

ProtocolEngine provides general health information based on published research. This is not medical advice. Consult a healthcare professional before starting any supplement or health protocol.

Blue light blockinghabitCLimited confidence

2 hours before bed

Prevents melatonin suppression from artificial light

Cool bedroom environmenthabitEInsufficient evidence

Bedroom setup

18-20°C optimal — core body temperature drop initiates sleep

Magnesium GlycinatesupplementASolid confidence

30-60 min before bed · 300mg magnesium bisglycinate

GABA receptor agonist — promotes sleep onset and deep sleep

L-TheaninesupplementBBuilding confidence

30-60 min before bed · 200mg

Promotes alpha brain waves — reduces anxiety without sedation

ApigeninsupplementBBuilding confidence

30-60 min before bed · 50mg

Mild sedative — binds GABA receptors, reduces cortisol

GlycinesupplementBBuilding confidence

Before bed · 3g

Lowers core body temperature — improves sleep quality and next-day alertness