Your notes.
Your choice.

Interactive tools

The bedroom selector, interactive room planner and caffeine explorer run in your browser. Your answers are not sent to an analytics or email service.

Optional analytics

On optimalsleep.org, Google Analytics loads only if you choose “Allow analytics.” It measures page visits, engagement, and clicks to our buying guide, room planner, notebook, checklist download, and listed manufacturers, using cookies and technical device information. A product-click event contains a fixed product identifier, not your tool answers or notes. We remove query strings from the page address we provide and send only the referring site’s origin. We do not send notebook entries or tool answers, and advertising consent remains denied.

Your choice is saved in browser storage. Use “Analytics preferences” in the footer to change it. Choosing “No thanks” stops further measurement and clears this site’s Google Analytics cookies; it does not erase information already processed by Google. Declining analytics does not affect the tools. See Google’s privacy policy.

Your notebook

Notes remain in the open page unless you choose “Save on this device.” Saving uses this site’s browser storage. Notes are not uploaded to OptimalSleep or synchronized across devices. You can clear them using the notebook’s clear button or your browser’s site-data controls.

This is not encrypted clinical storage. Avoid sensitive details on shared devices. Private browsing, browser cleanup, and changing the site address can make saved notes unavailable.

Hosting and external services

The hosting provider may process technical connection information to serve and protect the site. Fonts are requested from Google Fonts, which receives normal connection information when those files load.

Research links lead to external websites with their own privacy practices. There is currently no active newsletter signup or payment flow. The bedroom buying guide contains Amazon affiliate links; we may earn a commission from qualifying purchases. These links include our affiliate identifier, and Amazon applies its own tracking and privacy practices when you visit. Product images on that guide load directly from Amazon, which receives ordinary connection information when images load. Prices and image addresses are requested through our server; your tool answers and notebook are not included. See Amazon’s privacy notice.

Last updated September 8, 2026.