^won‘t work

Thanks for confirming that. sleep analysis work for my use case then. I’ll use heart rate and accelerometer only.

Thank you. The system doesn't generate the .sleepAnalysis samples in that duration. There was no sleep data saved in the Health.app for the test. I tried changing the Sleep bed time to be before the testing window, but still no data was saved in the 30 minute extended session window. Is there a way to programmatically force sleepAnalysis to be collected in a 30 minute window?