Sleep better knowing your immune system is supported naturally.

Z-Night from Z-Labs

You already know and trust the original Z-Stack, which Dr. Zelenko created to allow people all across the globe to take control of their health without relying on the corrupting power of big pharma.

Now experience Z-Night – a specially formulated supplement designed to support better sleep.

Z-Night was designed to support and strengthen your immune system through deeper, restful sleep.

Z-Night was developed with real, all-natural ingredients.

The ingredients in each capsule of Z-Night weren't chosen at random – they were chosen specifically for their natural ability to help support more restful sleep without nasty side effects or harmful pharmaceuticals.

Explore the key natural ingredients in Z-Night

Tryptophan (click to expand)

This essential amino acid – famous for inducing post-Thanksgiving drowsiness – serves as a precursor to melatonin. It has been shown to play a crucial role in regulating both mood and sleep, supporting a more peaceful slumber.


With its unique properties, GABA may actively reduce the time it takes to fall asleep. By calming your body's nerve responses to the brain, GABA may help support a state of relaxation, allowing your mind to disconnect and unwind.


As an essential mineral, magnesium may help boost melatonin levels, which may improve the quality and duration of your precious sleep.


This remarkable natural compound may boost the breakdown and excretion of caffeine, supporting an efficient detoxification process.


Embrace the soothing effects of chamomile – the gentle flower often known for its presence in many "sleepy-time" teas. Acting as a natural sedative, chamomile aids in relaxation which may lead to improved quality and length of sleep.


Hops may be considered a natural sedative that may help you achieve a longer and more restful sleep.

Passion Flower

Passion Flower is known for its calming effects and may help promote restful sleep.

Valerian Root

Valerian Root may ease restlessness which may help reduce the amount of time it takes to fall asleep.

Experience the secret to a night of blissful rest. Say goodbye to sleepless nights and embrace a rejuvenating slumber that leaves you refreshed and ready to conquer each day with vitality and vigor.

Dr. Zelenko knew the importance sleep plays on your immunity.

Each product from Zelenko Labs was built from Dr. Zev Zelenko's critical research into natural immunity.

To this day, the same team which built Z-Stack continues Dr. Zelenko's legacy with uniquely-designed natural solutions to modern-day living, including Z-Sleep.

The Zelenko Way

Free shipping on all orders

All Zelenko products feature fast, free shipping on all orders because we know how important it is to stay healthy.

Quality guaranteed

Dr. Zelenko built his legacy on the same products that bear his name to this day. Zelenko Labs stands behind its products with a 100% satisfaction guarantee.

Kosher, vegetarian, and gluten-free.

Z-Sleep was forumulated to be safe, healthy, and taken by people from all walks of life.


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