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Policy

Privacy policy

A short, plain-language explanation of the information this website collects and what happens to it.

Last updated: 31 October 2026

What we collect

We collect only what you choose to give us:

  • Newsletter signups: your email address, the date and time, and the page you subscribed from.
  • Contact messages: your name, email address, the topic you selected and the message you wrote.
  • Sleep diary download: nothing. The diary is generated in your browser and does not require an email address.

We do not ask for, and do not want, health information, diagnoses or medical records. If you include such details in a message voluntarily, we will delete them once your question has been answered.

Why we collect it

  • To send the newsletter you asked for, and nothing else.
  • To reply to your message.
  • To understand, in aggregate, which pages and resources are useful.

Cookies and analytics

This site does not run advertising cookies or third-party tracking pixels. Any analytics used are aggregated and are not used to build advertising profiles. If this changes, this policy will be updated first and a consent banner will appear before any tracking is set.

Sharing

We do not sell, rent or trade subscriber lists or contact messages. Data is stored using the platform that hosts this website and is accessed only by the people who run it. We may disclose information if legally required to do so.

Your choices

  • Every newsletter email includes an unsubscribe link.
  • You can ask us to export, correct or delete your email address or message at any time by contacting us.
  • We keep contact messages only as long as needed to handle the enquiry.

Children

This site is written for adults. It is not directed at children, and we do not knowingly collect information from anyone under 16.

Third-party links

Articles link to external organisations, and the workbook is sold through Amazon. Those sites have their own privacy policies; once you leave this site, their terms apply. The same is true for the email provider used to send newsletters.

Changes

If this policy changes materially, the date at the top of this page will change. Continued use of the site after an update means you accept the revised policy.

Contact

Questions about privacy can be sent through the contact form.