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ChristianKl comments on Open Thread Feb 29 - March 6, 2016 - Less Wrong Discussion
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The problem with smartphone apps is that they can only measure vibration and sound. Vibration can be used to see how much you move around and sound can get to the breathing frequency.
As Gunnar already said, vibration + breathing frequency doesn't seem to be a perfect way to measure sleep stages. The heart rate provides for better data. It would be interesting to know how fine the bed can track heart rate. If it could track HRV it would be really great.
The mattress on the other hand can measure the heart rate. At least they claim so on the website. Unfortunately the website is quite poor at providing information about the technological capabilites of the product.
Aren't there wrist devices that can measure your heart rate over time? Not sure how well they work, but they might be cheaper than a gadget bed.
Wrist-worn devices for measuring heart rate work for situations where you don't move much like sleeping when you don't need HRV. On the other hand some people prefer to sleep without something on their wrist.
On the other hand the bed does has features like automatically contouring the body and the ability to adjust the firmness of the bed that ordinary beds don't have.
For the future it would be interesting to test the effect of dynamically changing firmness and see whether it provides improvement with topics like back pain. It might be interresting to raise the firmness of the bed right before waking up.
A lot of people struggle with back pain. If the bed finds a way to relax the back better at night that can be valuable.