GOOGLE is using radar to find out how well you sleep at night.
Its tracking technology, originally developed for the military, is able to monitor movement and breathing in bed.
The small-scale Soli radar tech, which Google uses for gesture control on phones, is in the latest version of its Nest Hub smart speaker, being marketed as a health monitoring device.
It also detects coughing and snoring with its mic, while other sensors spot changes in lighting and temperature.
A detailed analysis of your sleep will be available every morning.
As it will be used in the bedroom, the tech giant removed the camera found in other Hub versions.
It also stresses sleep-tracking is optional on the £89.99 device.
But critics suggest radar may scare off privacy-minded users.
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