Last updated: 2026-11-11.
The software described here is written and used by one person, Johann Schleier-Smith, mainly on his own data. It is not offered to the public, and it has no other users.
A personal tool, used only by its author, that reads the author's own WHOOP sleep, recovery, cycle and workout data through the WHOOP API and compares it with the author's own home temperature and power measurements. Data is read only with the author's consent and is stored on the author's own computer.
Where an application connects to a third-party service (for example WHOOP) it accesses only the data of the account holder who authorizes it, and only the data types listed on the authorization screen. That data is used to analyze the account holder's own sleep, health and home environment. It is stored on the account holder's own devices.
Data is not sold, shared with third parties, or used for advertising. This site does not use cookies or analytics.
Access can be revoked at any time from the connected service's own account settings. To ask about or delete data, email contact@jssys.dev.