The Natural Sleep Aid that Works.


Yawn is a nootropic built on a precision dosage of melatonin, which studies have shown can support the three phases of sleep: falling asleep, quality of sleep, and feeling refreshed upon waking up. Sufficient, high-quality sleep is scientifically agreed upon to be the one of the most important activities to optimize cognition in the near-term.

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Sleep is your brain’s recovery mode.

Yawn helps you fall asleep quickly and effectively.

Yawn combines the sleep inducing effects of melatonin and glycine, into one super-sleep stack.

Learn more  about the clinical tests conducted.

Time to Fall Asleep

Reduced by

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In 19 studies of melatonin, participants fell asleep 7.06 minutes faster on average.1,2,3

Sleep Efficiency

Increase of

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Clinical studies on melatonin demonstrated an overall 3% improvement in sleep efficiency.1

YAWN pill image

Nootropic Ingredients


500 mg

Amino acid and a neurotransmitter.


Improves subjective sensation of sleep quality and mood on waking3,6


Reduces time to fall asleep6


Improved cognitive performance the next day4


100 mg

Amino acid commonly found in tea

Promotes relaxation without sedation


Reduces stress and anxiety7


300 mcg

Hormone produced in the brain that promotes sleep and regulates circadian rhythm (sleep-wake cycle)


Reduces the time to fall asleep and improves sleep quality1,2


Helps to normalise the sleep-wake cycle after travel across time zones8


Neuroprotective due to antioxidant and antiinflammatory properties9

Magnesium Glycinate

250 mg

Magnesium is an essential dietary mineral, commonly deficient in western diets

Supplementing as magnesium glycinate increases the bioavailability of magnesium and provides additional glycine10


Linked to reduced markers of stress and improved sleep quality

HVMN Evidence Grading

We share full knowledge of our understanding of the effects of HVMN products and their ingredients. Specifically, we indicate the grade of evidence underpinning HVMN products:

Learn more about HVMN Evidence Grading

Theoretical effect or in vitro evidence


Animal model evidence of effects


Early human evidence of ingredient effects


High-quality human evidence of ingredient effects


Human study of product as sold

Start the day refreshed.

Yawn improves your sleep and enhances your cognition the day after a restful night of sleep

Learn more  about the clinical tests conducted.

Objective Sleep Quality

Ingesting glycine before sleep significantly improved objective sleep quality as measured by a multi-measurement technique called polysomnography.3

Self Reported Sleep Quality

Participants forced to sleep 25% less than usual for three nights but given glycine before bed showed 50% reduction in subjective fatigue as well as improved 'fatigue,' 'peppiness' and 'clear headedness'.4

Supplement Facts

Serving Size: 1 Capsule
Servings Per Container: 10
% Daily Value
Glycine 500 mg
Magnesium Glycinate 250 mg
L-Theanine 100 mg
Melatonin 300 mcg

† Daily value not established

Other Ingredients: Hydroxpropyl Methylcellulose (vegetable capsule shell), Silicon Dioxide, Magnesium Stearate.


Take one capsule of Yawn with a glass of water, one hour before bedtime.

For a more pronounced and immediate effect, Yawn can be taken sublingually as follows. Open the capsule carefully, by holding it vertically and pulling the two halves of the capsule apart. Pour the contents under your tongue and allow to sit for 30 seconds. Then follow by drinking water. Yawn has a mild and slightly sweet taste.

Yawn is designed to be taken as needed, and does not need to be taken daily like Kado-3 or Rise.

Each bottle of Yawn contains 10 capsules.

Scientific Citations