Oura sync imports sleep score + readiness but never HRV or resting HR — likely the end_date exclusive quirk on Oura's detailed sleep endpoint

[david]

Thanks for all this info. I missed the post originally. Today I was asking Claude for help with the Oura sleep issues and it point me to your post!

Oura sync issue — daily OAuth token refresh not working

I think I have finally figured out whats up with the Oura sleep issues. Their API is broken. If I call the sleep endpoint with start_date=2026-08-19 end_date=2026-08-20 I get data for only 2026-08-20 (no 19th). If I call it with start_date=2026-08-18, then I get data for the 18th, 19th and 20th! Those parameters are supposed to be local dates matching the day field on the returned objects. Anyway I have worked around this by going back an extra day when a long_sleep webhook is received. Please …