Symptoms
Sophia Sleep Pre Mortem Protocol
Penn State researchers found that writing a specific worry list before bed significantly improved sleep quality — because the brain stops rehearsing what's already been recorded. This is that private, offline scratch pad. Write what's worrying you. Then close it and rest.
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Yes. Sophia is a local-first application. When you use the sleep pre mortem tool, all your data is stored exclusively in your browser's IndexedDB using PGlite. Your entries are never sent to a cloud server — only anonymous, content-free usage signals are collected to see whether the tool works.
No account is required. You can start using the sleep pre mortem practice immediately. Because data never leaves your device, there is no need for user authentication or logins.
Yes. Once you load the Sophia app, it can function completely offline as a Progressive Web App (PWA). You can practice sleep pre mortem even in airplane mode or without an internet connection.
Sleep research published in JAMA Internal Medicine shows that bedtime writing interventions reduce pre-sleep arousal and improve sleep onset latency.