In Stock
Natural Factors

Stress-Relax®, Tranquil Sleep®, 90 Enteric Coated Softgels

4.5 · 720 reviews
2,907 ₽

Dietary Supplement 5-HTP, Suntheanine® & Melatonin Easy-To-Swallow Advanced Fast Acting Formula Purity & Potency Guaranteed Tranquil Sleep formula is a unique combination of compounds that support relaxation and enhance natural sleep quality. In an easy-to-swallow softgel that is enteric coated to minimize any possible gastric discomfort. Isura™: Non-GMO: Documentation ✔ Mass Spec: Lab Tested ✔

International delivery

Shipping calculated at checkout

Returns & exchanges

Within 30 days of delivery

Dietary Supplement 5-HTP, Suntheanine® & Melatonin Easy-To-Swallow Advanced Fast Acting Formula Purity & Potency Guaranteed Tranquil Sleep formula is a unique combination of compounds that support relaxation and enhance natural sleep quality. In an easy-to-swallow softgel that is enteric coated to minimize any possible gastric discomfort. Isura™: Non-GMO: Documentation ✔ Mass Spec: Lab Tested ✔

Customer reviews

5.0
verified purchase

I have tried many sleep aids, and this one is different, in my experience, and effective. I feel relaxed shortly after taking it, and truly sleepy. I don't feel groggy the next day from using it. I find that the quality of sleep I get with these tabs is absolutely excellent !

12/21/2020
5.0
verified purchase
The Best!

I tried many products from other brands to help me sleep better but nothing really worked, I have serious insomnia, this one is by far the most potent product that I have ever used, no insomnia anymore and sleep much deeper and better, I will continue to use this and never change.

2/8/2017
5.0
verified purchase
Tranquil Sleep

So far, I take one of these every night. It has good ingredients, and they're natural. They do help me fall asleep okay. It's the waking in the middle of the night that has me staying awake for awhile. I think it's a good product as far as it goes.

12/13/2023
4.0
verified purchase

Good quality, not too high concentration, take 1-2 tablets and has a good sleep

7/30/2023
5.0
verified purchase
i have good sleep after this supplement

The combination of Melatonin and 5-HTP is fantastic. It helps me fall asleep faster, stay asleep throughout the night, and wake up feeling completely refreshed without any grogginess.

8/13/2026
5.0
verified purchase
Sleep success

Have tried many sleep products over the years, and this is the one we keep coming back to. It supports falling asleep and staying asleep without morning grogginess.

7/22/2026
5.0
verified purchase

I've been taking Natural Factors Stress-Relax Tranquil Sleep for a few months now, and it's been a gentle, effective support for those nights when I need help winding down. I love that it's a natural formula with melatonin, GABA, L-theanine, and relaxing herbs, all in an enteric-coated softgel that helps with absorption . I take one about an hour before bed, and I've noticed I fall asleep more naturally, stay asleep, and wake up feeling rested without any grogginess . It's a high-quality, trusted product from Natural Factors that I'll definitely keep on hand . I highly recommend it for anyone looking for a natural sleep aid .

3/27/2026
5.0
verified purchase
Прекрасно!

Thank you very much for this product, it suited me, I like the packaging, comfortable and stylish, I will order more of these products, and recommend them to all my friends and relatives! good!!

1/10/2026
5.0
verified purchase
Прекрасно!

Super product, I will definitely order it again, I recommend it to everyone, the packaging is of high quality, and the ingredients are excellent. Fast delivery, everything arrived in good condition and was well packaged !!!

12/25/2025
5.0
verified purchase
Better sleep

Good quality supplement that improves drastically the sleep. Deeper sleep = better recovery = more energy in the morning

10/26/2025