How it works

A letting go in three stages

The proposed relaxation technique is mainly based on relaxing voices, soft music and visual stimulation. No physical or mental effort required, just lie down and the technology does the rest.

PSiO Balloon

1. Release the body

PSiO technology is based on recognized techniques offering guided physical relaxation based on guided relaxation, slow breathing, etc.

PSiO Relax Mind

2. Relax the mind

The occurrence of specific sound frequencies in the background induces the alpha brain rhythm (state of relaxation) and brain chatter decreases. Stories from the right ear to the left ear will then accompany you into a natural release of attention.

PSiO sleep

3. Fall asleep

Visual stimulation becomes monotonous. Voices or music gradually pass in the background. Attention then goes completely to rest.

From then on, you fall asleep naturally.

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300,000 users find optimal sleep quality with PSiO


4,9 out of 5

based on 173 reviews

Read all reviews
For years, I woke up every day at 3:30 a.m. and went to sleep when I got up at 5:30 a.m. I went to bed tired and I got up tired, a horror ... Until this month of May when I was introduced to psio and the program "Joie de vivre". From the first evening, I slept all night without waking up. For the past 3 months, I have missed only 3 or 4 nights with the PSiO. I live again, I am delighted, Thank you.

Annick B. - France

PSiO helps me a lot, every night to fall asleep, I haven't used Temesta for about a week. I never thought it was possible one day to sleep without this filth.

Annie V. - France

After purchasing your PSiO device, I am very happy with it. In order to sleep I had to resort to medication but thanks to the use of your device, I can sleep peacefully, thank you.

Paul G. - Belgium

A magnificent product with which you can fall asleep in the garden of the gods! In addition the person who follows up in Belgium is absolutely adorable! He explained to me how to load additional programs for day use, always with the same kindness! I always thought to thank him and well here it is done! Thank you and well done for this design.

Marie V. - France

My PSiO glasses are now part of my life. It has become essential to me. I use it even at night when I wake up ... and I go back to sleep immediately It is wonderful! ... Thank you to the whole team

Giséle C. - France


A natural, portable and easy-to-use solution to find quality sleep

PSiO Glasses

An all-in-one solution

PSiO technology offers you an innovative, simple and effective solution to regain sleep quality. Stimulation by light at very precise rhythms naturally induces a state of "letting go", conducive to positive suggestion ... and falling asleep.

The PSiO Box

A portable solution

Whether at home, at work, on vacation ... A fantastic tool that you can easily take along and enjoy at any time.

Relaxation with PSiO

Light therapy and relaxation for a certain letting go

The PSiO is a true companion of the mind without making any effort. This state of total calm induces restful sleep and a peaceful night with pleasant dreams.

PSiO Tests

No side effects and certified to all standards

Unlike drugs, this method has proven after 30 years of practice that there are no side effects. PSiO has also obtained the certificate of total safety for the eyes by the French National Measurement Laboratory (LNE).

The PSiO in a wake up romm

A scientifically proven solution

This system has been used with great success in sleep laboratories for over 30 years in Belgium (Brugmann clinics - Dr Guy Hoffman - and Saint-Elisabeth - Dr Albert Lachman -). Dr. Patrick Lemoine - sleep specialist, doctor of neuroscience, director of research at Claude Bernard University in Lyon introduced PSiO as part of his consultations for his most insomniac patients with impressive results.

The PSiO Glasses
Is PSiO dangerous for your health ?

No, you can use it as many times as you like, unless you suffer from photosensitive epilepsy.

Grape of the action of light

This graph shows the action of the light emitted by the diodes, the red, green and blue lines. It is clearly seen that there is no ultraviolet or infrared ray emitted by the light sources. There is therefore NO danger in opening your eyes during a session.

Is the PSiO certified ?

(French National Laboratory for Metrology and Testing). LNE measured the maximum light intensity of the PSiO and produced a report certifying that the light emitted by the PSiO is approximately 3 times under risk ZERO for the retina. On the other hand, there is a great difference in sensitivity to light depending on the person. It is advisable to practice the sessions by adjusting the light to the minimum level at the start. If the light sensation is too strong, just close your eyes. You will find the LNE report on this link:
Has this product been tested ?

Thousands of users around the world use this well-known technology today. Thus, for more than 30 years, this technique has been used in university clinics as rapid relaxation in very stressful environments in operating rooms or sleep laboratories.

What are the benefits of PSiO ?

Thanks to PSiO sessions, you will be able to fall asleep easily and sleep peacefully. You will also recover good mood and recover quickly. The pulsating colors associated with voices and music stop ruminating thoughts and naturally put the mind to rest.

When should I do my session with PSiO ?

At the beginning, we advise you to listen to it every day at bedtime. Then 3 times a week for 2 months. Then once a week for 1 month. Thereafter, feel free to listen to them again whenever you feel the need. Before night, these recordings are the ideal preparation for a good night's sleep and for dreams that are both pleasant and useful.

Should I keep my eyes open during the session ?

For evening sessions, we advise you to keep your eyes closed. The programs are designed to be listened to in bed, before falling asleep thanks to the relaxing voices.

I am sensitive to light…

Photosensitive people can use the sessions that do not include flickering lights determined by the following symbol:

Level 1 - Very weak stimulation

This level is suitable for photosensitive people.

In addition, for this category of users, it is recommended to set the PSiO to the lowest intensity level

Warning: Despite photosensitive programs, people with epilepsy cannot use it.

What if PSiO doesn't suit me?
You have 14 days from the receipt of your order to return it to us and you will be reimbursed 100%.

You have more questions ?

One of our ambassadors will be happy to respond

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PSiO Sleep in couple