Reply To: Night-time bed-exit alert for a care home: which sensor, and how do I only alert between 22:00 and 06:00?

For the sensor: an FSR strip under the mattress works but needs calibrating per mattress and drifts as the foam ages. Load cells under two legs are more reliable and don’t care about bedding. Avoid PIR, it can’t tell “in bed” from “standing next to the bed”.