Sleep Shifu newsletter privacy notice

Effective 19 October 2026

Sleep Shifu uses your information to run its weekly research newsletter about AI-powered sleep tools. Contact goodnight@sleepshifu.com with privacy questions or requests.

Information we collect

Our current signup form asks for your email address. It does not ask for sleep records, medical information, or other health details. If you joined previously, our subscriber records may also include the name you provided, carried over with your email address when we moved our list into Kit. We keep subscription and confirmation status to manage the list.

How we use it

New signups through our signup page receive a confirmation email. After you confirm, we can send the weekly newsletter you requested. Existing subscribers carried over from our previous list do not have to confirm again simply because of the move. We use subscription records to manage signups and unsubscribes. If you email us, we use the information in your message to respond.

Our email provider

We use Kit to host our signup page, store subscriber records, and send emails. Kit processes subscriber information on our behalf under its Data Processing Addendum (https://kit.com/dpa), using service providers that may process information in the United States. Kit's services use cookies and similar technologies. For Kit's own processing of service usage information, see https://kit.com/privacy.

Email and page measurement

Kit provides delivery, subscription, email-open and link-click reporting. Email opens can be measured through a tracking image, and email link clicks can be recorded through tracked links. These reports help us understand newsletter performance and may include automated activity from email-security tools. Kit also provides signup-page visit and conversion reporting. We have not configured third-party analytics integrations on our newsletter signup landing page. Our current account settings do not add subscriber-ID, hashed-email or automatic UTM parameters to email links.

Your choices and requests

You can stop receiving the newsletter at any time using the unsubscribe link in our emails. Unsubscribing stops newsletter delivery; it does not necessarily delete your subscriber record. To request access, a correction, or deletion of your information, or to ask about other privacy rights that may apply where you live, email goodnight@sleepshifu.com.