What we collect, and what we don’t.

Last updated August 24, 2026. Plain English on purpose. Questions: [email protected].

The short version

You can read everything on this site, take the Sleep Assessment, and use the Sleep Window Calculator without giving us anything. We only receive personal information if you choose to enter your email address. We don’t run advertising trackers, we don’t sell personal information, and we never will.

The Sleep Assessment and the Calculator

Your answers are processed in your browser. If you skip the email step, your answers and your result are never transmitted to us — they exist only on your device and disappear when you leave.

If you choose to enter your email, we send the following to our systems so we can deliver your plan and tailor what we send you: your email address, your result segment, your category scores, and answer flags. This is health-adjacent information about your sleep, and we treat it that way: it is used to personalize what we send you and for nothing else.

Where it goes

• Cloudflare hosts this site and passes your subscription to our newsletter platform. Like most hosts, it keeps standard server logs (IP address, request time).
• beehiiv is our newsletter platform. Your email, segment, scores, and flags are stored there as your subscriber profile. beehiiv’s own privacy policy also applies.

No analytics pixels or advertising trackers are installed on this site today. If that ever changes, this policy changes first.

Your choices

• Every email we send includes one-click unsubscribe.
• Email [email protected] to ask what we hold about you, or to have it deleted. Deletion means your subscriber profile, including quiz data, is removed from beehiiv.

What we don’t do

• We don’t sell or rent personal information.
• We don’t share quiz answers with advertisers, brands we review, or anyone else.
• This site is not directed at children and we don’t knowingly collect information from anyone under 16.

Changes

If we change how data is handled — new vendors, analytics, anything — we’ll update this page and the date at the top before the change takes effect.