3AM Decoder MCP Server
Sleep disruption cause classifier from The Longevity Vault
Identifies the biological cause behind 3AM wakeups using a 5-cause framework developed by Kat Fu, M.S., M.S. (Stanford). Built on the Model Context Protocol for AI agent integration.
What This Does
Most sleep advice treats symptoms. This server classifies the biological mechanism behind sleep disruption into one of 5 causes:
| Cause | What's Happening |
|---|---|
| Autonomic | Nervous system stuck near the alert threshold — normal mid-sleep arousals trigger full wakefulness, racing thoughts, cortisol release |
| Metabolic | Overnight blood sugar drops below tolerance — liver glycogen depletes, adrenaline fires to maintain glucose, you wake up |
| Inflammatory | Cytokines (IL-6, TNF-alpha) fragment sleep architecture — histamine keeps the brain near the wake threshold |
| Hormonal | Shifting testosterone, estrogen, or progesterone levels reduce deep sleep, destabilize temperature regulation |
| Circadian | Internal clock (SCN) misaligned with intended sleep schedule — sleep pressure and circadian timing are out of sync |






