That project is now personified by today’s announcement of Halo Rise, the $140 “no-contact bedside sleep tracker, smart alarm and wake-up light” that picks up signals from your bedroom that even the partner sleeping beside you won’t notice. (To get the best use of that data to improve sleep, users must subscribe to the premium Halo app; the first six months are free.) Amazon had already been in the popular sleep tracking-game with its wearable Halo wristband, but a dedicated radar-equipped device is enough to cause stress-breathing anomalies among its critics. I asked Limp whether there might have been any hesitation before developing a product that seems so intimate.
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