HesperPrivacy Policy
Hesper is a sleep coaching service for parents of babies aged 6 to 12 months. We work with you in a WhatsApp chat: you tell us when your baby wakes up and falls asleep, and we plan the day, remind you of the next nap and adjust the plan as we learn your baby's rhythm.
This policy explains what data we collect, why, who helps us process it, and what you can do about it.
Who we are
Hesper (hespersleep.com) is run by Anton Zialionka, who is the data controller for the data described here. Contact: hello@hespersleep.com.
What we collect
| Data | Where it comes from |
|---|---|
| Your WhatsApp phone number; the country code and time zone that follow from it | WhatsApp, when you message us |
| Messages you send us and our replies, including the buttons you tap | The chat |
| About your baby: age range, number of naps, how they usually fall asleep and who settles them | Your answers when you start |
| Sleep log: wake-up, nap and bedtime times, and the plan we calculate from them | The times you log in the chat |
| Health-related notes you choose to share: fever, a cold, teething, vaccines, medicine, a hard night, and your answers to our safety questions | The chat |
| Your consent: which version of this policy you accepted and when | The chat |
| Payment: amount, currency, payment status and a Stripe reference | Stripe |
| A short code from the link you used to reach us (for example, which page version you saw) | The link that opened the chat |
We do not see or store your card details: payments are handled by Stripe. We do not process voice messages; we ask you to type instead. We do not collect your baby's name.
Why we use it
- To run the program you signed up for: calculating the day's plan, sending reminders, adjusting the plan and answering your questions about your baby's sleep. Legal basis: performance of our contract with you.
- Health-related notes about your baby are special category data. We process them only with your explicit consent, which you give in the chat before the program starts, and only to adapt the plan and keep it safe. You can withdraw consent at any time; we then stop the program and delete the data as described below.
- Human support: a Hesper coach, who is a person, can read your conversation to help you and to check the plan.
- Payments and accounting: to take payment and keep the records the law requires. Legal basis: contract and legal obligation.
- Security and fixing problems: legal basis: our legitimate interest in keeping the service working and safe.
Your plan is calculated by software from the times you log, and a human coach oversees it. These calculations do not produce legal or similarly significant effects on you.
We do not sell your data, and we do not use it for advertising.
Who processes it for us
- Meta (WhatsApp Business Platform) delivers messages between you and us. WhatsApp's own terms and privacy policy also apply to your use of WhatsApp.
- Anthropic (Claude) reads messages you type in your own words, so we can understand them and draft short answers to questions about sleep. Under its commercial terms, Anthropic does not use this data to train its models.
- Stripe processes payments.
- Vercel hosts the service, Neon hosts the database, and Cloudflare serves this website and handles our email.
These providers process data only on our instructions. Some of them are based in the United States. Where data leaves the UK or the European Economic Area, we rely on safeguards such as the EU Standard Contractual Clauses or the EU–US Data Privacy Framework.
How long we keep it
We keep your data while you are in the program and for 12 months after your last message, so you can come back if sleep changes again. After that we delete it. If you ask us to delete it earlier, we do so within 30 days. Payment records are kept as long as tax law requires.
Your rights
You can ask us to give you a copy of your data, correct it, delete it, send it to you in a portable format, or stop processing it. You can withdraw your consent at any time; this does not affect processing that happened before. To do any of this, write "delete my data" (or your request) in the WhatsApp chat or email hello@hespersleep.com. How to delete your data: data deletion.
If you think we have handled your data wrongly, you can complain to your data protection authority: in the UK, the Information Commissioner's Office (ico.org.uk); in the EU, the authority in your country.
Children
Hesper is used by parents and legal guardians aged 18 or over. We collect information about a baby only from their parent or guardian, and only what the program needs.
This website
This website does not use cookies or analytics.
Changes
If we change this policy in a way that matters, we will tell you in the chat before the change applies. The date at the top shows the latest version.