this post was submitted on 21 Feb 2025
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You can build a simple bed presence sensor using one of those pressure mats used to hook up to alarms in nursing homes and a water/leak detector (I use the aqara detector for this). You just have to strip off the end of the cable from the mat, find the wires that do the circuit inside of the mat (I just used the leak sensor to find them) and wire it up to the sensor. Boom, bed presence sensor! Of course, this doesn't track your sleep directly.
There are better gadgets to track your sleep. If you want to just track how you're sleeping, get a cheap fitbit. Withings or Apple Watch are also able to detect sleep apnea