Sleep supplement · Formula 01
Magnesium, done properly.
Glycinate form at the clinical dose. Made for better sleep. Nothing else.
- 275mg elemental magnesium, the dose research uses
- Chelated glycinate — substantially better absorbed than oxide, gentle on the stomach
- No melatonin, no hormones, no proprietary blend
- 30-night money-back guarantee
Magnesium glycinate is recommended by
Most people notice the difference within the first two weeks of nightly use, as cellular magnesium normalises.
Magnesium is a cofactor in more than 300 enzymatic reactions — including those governing sleep, muscle relaxation, and the nervous system.
A full month to know. If it's not working, keep the bottle — we refund you in full, no forms, no questions.
The formula
What's inside.
One ingredient. The clinical dose. The form research actually uses.
Ingredient
Magnesium Bisglycinate
chelated with two molecules of glycine
from 2,500mg of magnesium bisglycinate
3 capsules · 30 min before bed · with or without food
Not in it
- —No melatonin
- —No hormones or phytoestrogens
- —No magnesium oxide
- —No proprietary blend
- —No added sugars, dyes, or flavorings
- —No soy, dairy, gluten, corn
Plant-based hypromellose capsule. Rice flour, magnesium stearate, silicon dioxide as standard processing aids. That's the full label.
The ritual
How it works.
Order a bottle.
$29.99 with free shipping. Typically ships in 2–3 business days.
Three capsules, 30 minutes before bed.
With water. With or without food. Same time every night.
Sleep better.
Most people feel it within the first week. If it hasn't moved by night 30, we refund you in full.
Recommended for sleep
What sleep and longevity experts say about magnesium glycinate.
Statements below refer to magnesium glycinate as a category — not to SleepStack specifically. SleepStack is the same form, at the dose research uses.
“Magnesium glycinate calms the nervous system — especially when stressed, which depletes magnesium. I take 120 mg before bed; some research uses 200–400 mg.”
“Magnesium bisglycinate is one of the forms that can support sleep by engaging GABA pathways. Take 200mg, 30–60 minutes before bed.”
“For sleep, I recommend trying magnesium threonate or glycinate around 145 mg, 30 to 60 minutes before sleep.”
“Magnesium glycinate is a broad-spectrum option for sleep and anxiety. It's bound to glycine, has high bioavailability, and doesn't carry the laxative effect of magnesium oxide.”
Start tonight
Shop.
Free shipping, every order. 30-night money-back guarantee.
One bottle
30 nights
- Free shipping
- 90 capsules (30 nights)
- 30-night guarantee
- Ships in 2–3 days
Subscribe
Ships every 30 days · save 20%
- Free shipping
- Same bottle, on repeat
- Launch price, locked for life
- Cancel anytime, one email
Three bottles
90 nights · save 25%
- Free shipping
- $22.49 per bottle
- Same 30-night guarantee
- Ships in 2–3 days
The guarantee
30 nights. Or your money back.
If it doesn't work for you, email us. Full refund — keep the bottle.
Add to cart — $29.99Before you start
Common questions.
The journal
Read the research.
Evidence-based reading for anyone who wants to know what's actually in the bottle — and why it works.
Start tonight
Try it tonight.
$29.99 for 30 nights. 30-night money-back guarantee.
Add to cart — $29.99