Moderate◆Supplement
Magnesium glycinate for sleep
Magnesium is common advice, but the form is the whole decision — and the form most people take is the least useful one for sleep.
62% noticed a change249 tried
Experiments that help you sleep better
Supplements, protocols, and habits for falling asleep and staying asleep, organized by what worked best for users
The aggregate picture
What we're seeing across everyone tracking sleep
Improving sleep is one of the most common reasons people come to Coco.
2,964
experiments started
61%
completion rate
40%
noticed a change
21%
made it routine
What's working best
Top 5 ranked by people who noticed a change
The full sleep library
All sleep experiments (11)
Moderate◆Supplement
Glycine for sleep
A simple amino acid that helps you fall asleep faster by lowering your core body temperature from the inside.
55% noticed a change192 tried
Moderate◆Supplement
L-theanine for sleep
It doesn't sedate you — it dials down the hyperarousal that keeps you awake, which is a fundamentally different mechanism.
55% noticed a change229 tried
Moderate◆Supplement
Ashwagandha for sleep
The sleep effect is distinct from the general 'stress' hype — but only with the standardized extract and at the right dose.
50% noticed a change197 tried
Moderate◆Supplement
Apigenin for sleep
The compound that gives chamomile its calming effect — at the dose the research actually used, not what's typically in tea.
45% noticed a change260 tried
Established◆Supplement
Melatonin for jet lag
The most evidence-backed jet lag intervention. Whether it's taken before or after arrival is what most people get wrong.
40% noticed a change396 tried
Established◎Lifestyle
Hot bath before bed
A hot bath helps you sleep by cooling you down afterward — and the timing, 60–90 minutes before bed, is the mechanism.
30% noticed a change290 tried
Established◈Device
Morning bright light
A morning light signal is the most powerful lever for shifting your body clock — and it's free, though timing matters.
28% noticed a change320 tried
Moderate◷Protocol
Early time-restricted eating for sleep
Eating earlier is a circadian signal — not just a metabolic one — and it can shift sleep timing more reliably than most supplements.
26% noticed a change163 tried
Moderate◉Dietary
Tart cherry for sleep
The only common food that stacks melatonin, tryptophan, and an enzyme-blocking effect that keeps melatonin available longer.
25% noticed a change406 tried
Established◷Protocol
Brief behavioral treatment for insomnia
A 2–4 week protocol that rebuilds sleep efficiency — no medication, and stronger long-term evidence than sleeping pills.
23% noticed a change262 tried
The top experiment
Magnesium glycinate for sleep, in practice
249
started
76%
completed
62%
noticed a change
27%
made it routine
Self-reported by Coco members. Not a clinical outcome.
See details →Run your own sleep experiment
Coco tracks what you try, notices what changes, and tells you the truth about whether it's working for you.
Educational content only. Not medical advice. Talk to a clinician before changing treatment.