REST 181 reviews

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REST great, feel great. 

Sleep is the most overlooked aspect in health. Sleep improves cognition, immunity, energy, strength, mental health and overall wellness.

Our expertly formulated and doctor-backed master sleep blend contains magnesium, melatonin, GABA, L-Theanine, and adaptogen herbs.

This unique combination helps you relax, fall asleep, stay asleep, and wake up feeling rested and supercharged.

  • Benefits: Calm + Relaxation + Sleep*
  • Non habit-forming, no grogginess
  • Doctor-backed, synergistic formulation
  • Simple to use and perfectly dosed
  • 0 calories and 0 sugar
  • Organically sweetened
  • Delicious, natural lemon chamomile flavor
  • Really works

Take 30 minutes before bed to sleep great and wake amazing!

Calm + Relaxation + Great Sleep

Take 30 minutes before bed for an amazing night’s sleep to wake up tomorrow fully rested and feeling great!

Mix with 12-24 ounces of water for desired taste, or enjoy it hot as a warm tea before bed.

Pro tip: Add to hot water for a warm pre-bed tea or mix it up with sparkling water for an effervescent nightcap.

Crafted clean, thoughtfully formulated. Every ingredient has a purpose.

Supplement Facts: Serving Size: 1 packet (4.2 g), Amount per Serving: Magnesium 325 mg (77% DV), MANTRA™ Sleep Blend: 2,336 mg†† [Magnesium citrate, lemon balm (aerial parts), passion flower extract (aerial parts), melatonin (3mg)] MANTRA™ Calm Blend: 300 mg†† [Suntheanine® L-Theanine, Gamma-Aminobutyric Acid (as PharmaGABA®)] †† Daily Value (DV) not established.



PharmaGABA® and Suntheanine® provide relaxation and brain + mood support.*


Magnesium and just the right amount of melatonin support restful sleep.*


Wake up refreshed with soothing anti-stress and adaptive herbs: passionflower and lemon balm.*


Learn what makes REST work so well.

Magnesium helps keep your immune system strong and is a key mineral that supports nerve and muscle health – from keeping your heart beating properly to reducing leg cramps. It is pivotal throughout the body and helps in the production and regulation of GABA and melatonin (both of which help you relax and sleep). Not only will it support your sleep, but you are setting yourself up for proper hydration and cellular functioning tomorrow.*

Suntheanine® is a high-purity form of L-Theanine produced via a patented fermentation process to deliver one of the purest and most active forms of L-Theanine. Suntheanine® has been extensively clinically studied and has been shown to increase alpha waves in the brain and support relaxation and rest, improves sleep quality, and promotes focus and mental clarity.*

GABA (Gamma Amino Butyric Acid) is an inhibitory neurotransmitter in the brain. PharmaGABA® is a naturally fermented, bio-identical, and bioavailable form of GABA. Across multiple human clinical studies, it has been demonstrated to reduce stress, calm the mind, increase sleep quality and improve recovery.*

Melatonin is the essential hormone of the human body’s circadian rhythm (wake/sleep cycles). We provide just the right amount to help you sleep, but not so much that it will leave you groggy in the morning or impact your natural melatonin production. Clinical studies show melatonin can help you fall asleep faster, stay asleep and have a more restful sleep.*

An ancient herb used for centuries to help digestion, relieve stress, and promote relaxation and sleep. Oh, and it smells and tastes good, like a nice cup of lemon chamomile tea.*

A traditional herbal remedy used to combat anxiety, stress and insomnia. Bottom line: it’s a good-for-you herb that helps you get some great sleep.*


Many folks experience game changing sleep and rest the first night they take REST. For others, it can take 2-3 nights.

The way you experience REST will vary depending on the way you spend your day. While you won’t feel REST like a narcotic sleeping pill, it is designed to provide a calming effect and sleep support from the L-Theanine, GABA, herbs and melatonin. The magnesium adds a boost to this while also supporting hydration, heart health and your nervous system. 

Absolutely! Many folks find that half a serving does wonders for them most nights. As with all things sleep and health related – you don’t want to overdo it. The goal is to support your body’s natural biorhythms and give it the nutrients it needs to operate properly morning, noon and night. This is what our Chrono-Nutrition System was designed to do.

REST is carefully crafted to provide you the best sleep possible without affecting your mornings. You’ll wake up fully rested and ready to attack your morning.

Ideally, you should stop drinking water at least an hour before bed. However, the small amount of water you take with REST is not enough to cause any waking issues for most - and helps hydrate you before bed. If you find that water close to bed creates the dreaded pee stumble at 1am, try doing REST as a quick shot (the healthy kind) with just 2-4oz of water.

No, REST does not contain sugar. It is sweetened with organic stevia leaf extract and organic monk fruit.

REST contains 0 carbs and 0 sugars. As such, REST is keto-friendly and won’t take you out of ketosis.

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Customer Reviews
4.9 Based on 181 Reviews
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Filter Reviews:
Tracie l.
United States United States
I recommend this product
I enjoy it.

I really like the product and I like the new packaging

Emily W.
United States United States
I recommend this product
It actually works for me

I love mixing it with sparkling water and it's one of the few non-pharmaceutical solutions that actually helps me sleep.

Nina H.
United States United States
I recommend this product
Best sleep ever!

I have a hard time sleeping most of my life. As I’ve gotten older it’s gotten worse. I decided to give Mantra Labs a try. It’s truly changed my life. Not only is it helping me sleep the quality of my sleep is so much better. I’m waking up feeling rested and refreshed. A huge plus is it tastes great also! I highly recommend!

Amanda C.
United States United States
I recommend this product

The taste is phenomenal. I drank it as warm tea before bed & enjoyed it . I even let my teenager try it and she liked it .. definitely plan to get more

Rona T.
United States United States
I recommend this product
sleep better

I've been using REST for a while now. It makes very sleepy, but I still wait to fall asleep at night. Guess it takes more use. I am very happy with the product. No longer feel drugged like with sleep aid pills. Thank you Ron'a

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