FP2 Presence Sensor for Sleep Monitoring

[Quasi-Pseudonym]

I recently purchased Aqara’s new FP400 Presence Sensor to replace my FP2 Presence Sensor. Because it does what the FP2 does, just better. For multiple reasons that fall outside of the point of this topic. I also wanted to repurpose my FP2 for it’s unique sleep monitoring function. I started wearing a smartwatch to track my sleep via Samsung Health and Sleep as Android after purchasing one a few months ago. The watch preformed sleep monitoring very well via Samsung Health for the first month. Then, ever since things have gone from bad, to worse, to terrible and finally essentially none functional. So I decided that I’d try the Sleep as Android app to see if that was able to get more consistent results. To my surprise, after paying for the lifetime purchase, Sleep as Android has managed to continue maintaining given me constant sleep measurement data every night for months now. They achieve this by combining my Samsung Smartwatch 8 vital tracking together with their own sonar based proprietary algorithm that uses your phones speakers and microphone to measure movements while you sleep. There’s even a custom Sleep as Android Home Assistant Webhook Integration as well as support for MQTT.

Anyway, I’ve been aware of Aqara’s FP2 sleep monitoring feature since first purchasing it about a year ago. However, I hadn’t ever tried it or heard really anything from anyone else about it. So after successfully setting up the second FP400 I received as the first one became undiscoverable after a failed attempt to switch from Thread firmware over to Zigbee firmware. I installed my FP2 in my bedroom with high hopes for increasing recording my vital measurements while sleeping using an alternative source independent from my phone or watch.

That is until I quickly discovered that there’s a whole new set of problems to try and solve for using this method of vitals measurements for sleep monitoring. First of all, right off the bat, after setting it all up and insuring that it was working properly and everything. I was surprised when I woke up the following morning after the first night sleeping with it set up to find it didn’t record anything except for constant false person got out of bed detections all night long. After doing some reading and changing a few things including changing the sensor strength setting. I was happy to wake up and find that the FP2 successfully tracked my sleep the second night. However, even with everything set up exactly the same it failed to track my sleep the 3rd night. The 4th night it successfully tracked my sleep for the second. However, it failed track my the 5th and 6th nights. The 6th night was last night. I just don’t get it. Even after taking every precaution to maintain the same sleep environment each night. The FP2 has only successfully maintained measuring my vitals throughout the night in order to provide me with a sleep report the following day two nights out of six. I mean, I’m getting to the point where I’m beginning to wonder if the problems I’m experiencing across multiple sleep tracking platforms that use various types of vital measuring devices are caused by or as a result of my individual sleeping habits and/or particular environment.

I haven’t seen any other information about this topic anywhere else as of yet. I felt that Aqara’s forum would be the best place to start since the FP2 sleep monitoring feature is only available if the FP2 is set up and being used with Aqara’s app. Anyone else here have any experience with using the FP2 for sleep monitoring? Any additional information would be greatly appreciated. I tried to upload some screenshots I took of my results but the Aqara app shows that it doesn’t have access the external to visual media and I can’t find the permission in Androids apps settings for the Aqara app anymore. Not sure what happened to it because I know it used to be there as I’ve uploaded 3rd party wallpapers to use as custom background for each of my home pages I’ve created.

Anyway, I’ll see if I can upload them after I’ve created the topic.

Again, any experience, information and/or advice is always welcome and appreciated

[AqaraBot]

@Quasi-Pseudonym Hello there! It’s great to see you diving deeper into the Aqara ecosystem, especially with the impressive FP400. Upgrading to the FP400 while repurposing the FP2 for its specialized sleep monitoring is a clever move, and I completely understand the frustration of dealing with inconsistent data. Sleep tracking is highly sensitive, and getting those reports to align perfectly every night can be a bit of a puzzle.

Based on the common experiences shared by other users, here are a few troubleshooting steps that might help stabilize your FP2’s sleep monitoring:

1. Minimize Environmental Interference
The FP2 uses millimeter-wave radar, which is incredibly sensitive to movement. Devices like air conditioners, fans, or even curtains moving in the breeze can interfere with the radar’s scan, causing false “out of bed” detections or missed sleep data. Try to keep these items away from the sensor’s direct line of sight or turn them off during the night to see if consistency improves.

2. Optimize Sensitivity Settings
You mentioned adjusting the sensor strength, which is key. If you are experiencing false “out of bed” notifications, it might be helpful to increase the presence detection sensitivity slightly. Higher sensitivity helps the device detect small movements better, reducing the chance of it mistakenly thinking you’ve left the bed. Conversely, if you are missing sleep data entirely, you might need to lower it, but since your main issue seems to be false alerts, increasing it is often the fix.

3. Run “Spatial Intelligent Learning”
This is a crucial step that many users overlook. The FP2 has a feature called “Spatial Intelligent Learning” (or “Sleep Space Intelligent Learning”). You should run this when the room is completely empty and in an “absence” state. This helps the device learn the baseline of your specific environment, significantly improving accuracy over time.

4. Check Zone Positioning
Ensure the monitoring zone is precisely aligned with your sleeping position. Fine-tuning the exact position of the monitored zone in the app can help the sensor focus only on you, ignoring other areas of the room that might trigger false positives.

5. Single-Person Monitoring Limitation
Just a quick reminder that the FP2’s sleep monitoring is designed for single-person detection. If you share your bed, nearby movements from a partner can interfere with the report. Setting the monitoring zone strictly to one side of the bed can help minimize this interference.

6. Heart Rate Consistency Note
Also, keep in mind that the FP2 measures heart rate via radar detecting chest movements. These readings are for reference only and may differ from professional medical equipment or smartwatches, especially if you move during sleep. The FP2 is best at measuring respiration and heart rate during static conditions.

This information comes from community discussions and user experience summaries and may vary by environment. Please verify carefully.

I hope these tips help you get those consistent sleep reports! It’s always interesting to hear how different setups perform. Have you had a chance to try the “Spatial Intelligent Learning” feature yet?

If you continue to face issues after trying these steps, please contact the Aqara Home App Customer Service Team (Profile> Help & Feedback > Customer Service) or scan the QR code:

This will be more efficient. If you do not have an Aqara Home account, “Please click here” to create a ticket.