A clear, guided evening routine, at your own pace.
Sommeil Serein App is with you every evening: a checklist of steps to tick off, tracking of your bedtime and wake-up time, relaxation tips before bed and a night journal, in a web app designed for your phone. Nothing to install.
Keep a paper book by the bed: a page or two is enough to mark the end of the day.
A paper book rather than a screen for the last few minutes of the day.
Three minutes of slow breathing, sitting or lying down, before switching off the light.
Put your phone out of reach of the bed, on silent, before the last step.
Interactive preview: try the tabs, tick off a step.
An end of day that is easier to organize
In the evening, the last thing you want is to think. Sommeil Serein App brings together in one place what matters to close the day: a clear checklist of steps, two times to note down, a short tip and a space to write a few lines.
You open the app in your browser, follow the routine, put the phone down. No external account, no intrusive notifications, no menus to explore: a dark, calm interface made for the evening.
Easy to follow
One checklist per evening, ticked off as you go. You can see where you are at a glance.
Nothing to install
The app runs in the browser on your phone, tablet or computer. No download.
A few minutes is all it takes
The steps are short and the tips fit in a few lines. The routine adapts to the time you have.
At your own pace
A step-by-step path, with no days to count: you move on to the next step whenever you like.
What's inside the app
Four tools designed for the evening, a step-by-step path and an interface built for your phone, brought together in a single personal space that opens in your browser.
Guided evening routine
A checklist of steps to tick off every evening (lights, screens, preparing for tomorrow, a moment of relaxation), along with a tip of the day. You adapt the steps and times to your own habits.
Rhythm tracking
Enter your bedtime and wake-up time in two taps. A simple chart shows your last seven days and your averages, so you keep an overview without any effort.
Relaxation tips
Short, practical tips for setting up a calm moment before bed: reading, a simple breathing exercise, where screens belong. One tip at a time, never an endless list.
Night journal
A few lines in the evening, your mood on waking the next morning: a personal notebook to keep track of your evenings and reread your notes whenever you like.
Step-by-step path
Content unlocks progressively, step after step, with no days to count. You move forward when you decide to, and you can go back at any time.
Designed for your phone
A dark interface, easy to read one-handed, that also works on tablet and computer. Your progress is saved automatically in your personal space.
A calm interface, designed for the evening
Here are the main screens of Sommeil Serein App, as you will find them in your browser.
Lay out your clothes and pack your bag tonight: tomorrow morning starts lighter.
Evening routine
Your evening steps, ticked off one by one, with the tip of the day right below.
Rhythm tracking
Two times to enter, a simple chart and your averages for the week.
Choose a paper book rather than a screen for the last few minutes of the day.
Night journal & tips
A few lines in the evening, your mood on waking, and a relaxation tip within reach.
From payment to your first routine
A simple, transparent process: no installation, no waiting.
Secure payment
You confirm your order on a secure payment page. The amount, currency and payment method are clearly displayed before confirmation.
Access sent by email immediately
As soon as your payment is confirmed, your personal access link is sent to the email address used at purchase, usually within a few minutes.
Open the app in your browser
Open the link on your phone, tablet or computer and start your first evening routine. You can add the app to your home screen.
For anyone who wants a better-organized end to the day.
Sommeil Serein App is an organization tool, accompanied by educational content, designed to be simple and pleasant to use every evening. It is not a medical program.
Your access and your payment, in plain terms
No surprises: here is exactly how you receive access and what you are charged.
How you receive access
After payment confirmation, we send a personal access link to the email address used at purchase, usually within a few minutes. It opens in any modern browser: no app store, no download.
What you are charged
A one-time payment of €27 (euros). No subscription, no renewal, no additional fees. The amount is displayed before confirmation. Access to the online app includes its updates.
Cancellation
There is no subscription to cancel. If you change your mind, write to support@zngroupglobal.com within 7 days of purchase to request a refund. Details in our Cancellation Policy.
Refund
Every purchase is covered by a 7-day refund period from the date of payment. Simply write to us from the email address used at purchase. Full terms in our Refund Policy.
One price, one payment
Full access to Sommeil Serein App, updates included. Price shown in euros (EUR).
One-time payment
Access to the online app, including its updates. No subscription, no renewal.
- Guided evening routine, with steps to tick off and a tip of the day
- Rhythm tracking (bedtime and wake-up time) with a simple chart
- Relaxation tips before bed (reading, breathing, screens)
- Night journal: evening notes and mood on waking
- Step-by-step path, at your own pace, with no days to count
- Works in your browser: phone, tablet or computer, no installation
- Email support
Educational content and digital wellness tools. Sommeil Serein App helps you organize your end-of-day habits. This product does not constitute medical advice, a diagnosis or medical care, and does not replace the support of a healthcare professional.
Designed and operated by ZN Group LLC
Sommeil Serein App is developed and operated by ZN Group LLC, a US company that designs and operates software and web applications for international markets.
We manage the entire life cycle of our products, from development to support, including delivery and billing: there is always a real team behind your purchase.
Support
Your questions, our answers
Can't find what you're looking for? Our support team replies by email.
How do I access the app after purchase?
As soon as your payment is confirmed, we send a personal access link to the email address used at purchase. Open it in your browser: you can start your first evening routine right away.
Do I need to install anything?
No. Sommeil Serein App is a web app that runs directly in your browser: nothing to download, nothing to install. If you wish, you can add it to your phone's home screen to open it faster.
Does it work on my phone?
Yes, the app is designed first and foremost for your phone. It also works on tablet and computer, with any modern browser.
Where are my data and progress saved?
Your ticked-off steps, the times you enter, your journal notes and your progress along the path are saved automatically in your personal space: you pick up where you left off. Your profile, login and usage data are processed by ZN Group LLC in accordance with its privacy policy.
How much does the app cost and when am I charged?
Sommeil Serein App costs €27 (euros), paid once at the time of purchase. The price, currency and payment type are displayed before you confirm. You will not be charged again afterwards.
Is there a subscription or renewal?
No. It is a one-time payment, with no subscription and no automatic renewal. Your access to the online app remains active with no further billing.
Are updates included?
Yes. Your access includes the online app as well as its updates, at no additional cost.
What does “step-by-step path” mean?
The app's content unlocks progressively, step after step, rather than on a calendar. There are no days to count: you move on to the next step when you decide to, and you can go back to previous ones at any time.
What will I see on my bank statement?
The payment appears under a descriptor containing "ZN GROUP" (for example "ZNGROUP* …" or "ZN-GROUP-PROTOCOL"); the exact descriptor may vary depending on your bank. If you do not recognize a payment or have any question at all, write to us first at support@zngroupglobal.com, before contacting your bank: we reply within 48 business hours and find the best solution (explanation, cancellation or refund in accordance with our policy).
How do I cancel my purchase?
Since there is no subscription, cancelling means requesting a refund. Write to support@zngroupglobal.com within 7 days of payment, from the email address used at purchase. Details are in our Cancellation Policy.
Can I get a refund?
Yes. Refund requests are accepted within 7 days of the date of payment, in accordance with our Refund Policy. Send an email to support@zngroupglobal.com with your purchase details to start the request.
I didn't receive the access email, what should I do?
First check your “spam” or “promotions” folder. If you still can't find anything, write to support@zngroupglobal.com from the email address used at purchase: we will resend your access.
Is this a medical program?
No. Sommeil Serein App offers educational content and digital wellness tools to organize your end-of-day habits. This product does not constitute medical advice, a diagnosis or medical care, and does not replace the support of a healthcare professional.
How do I contact support?
By email at support@zngroupglobal.com. We reply within 48 business hours. For any payment-related question, write to us first, before contacting your bank, stating the email address used for the payment: we will find the best solution.
Ready to close your days more simply?
Receive your access by email and open Sommeil Serein App tonight, directly in your browser.
Get access nowEducational content and digital wellness tools. Sommeil Serein App helps you organize your end-of-day habits and offers relaxation tips for informational purposes. This product does not constitute medical advice, a diagnosis or medical care, and does not replace the support of a healthcare professional. If you have any questions about your health, consult a qualified professional. By using the app, you agree to our Terms of Service.