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Sweet Dreams: Luna Smart Mattress Cover Tracks Your Sleep

The Internet of Things has made its way into a lot of homes already, but the Luna smart mattress cover is one of the first devices to get all the way into the bed. Yes, it's a smart mattress cover — but it's not as crazy as it sounds. The Luna works as a sleep-tracking device, monitoring your vitals overnight and sending that info along to a smartphone app. This alone might make it worth buying to some, since other sleep trackers need to be worn on your wrist — or even your head. But Luna also acts as a bed warmer, predicting when you'll go to sleep by your previous schedule and warming the bed up to a preset temperature — there are even separate settings for each side of the bed. Add an alarm system that wakes you up between sleep cycles (for minimum grogginess) and the Luna starts seeming like a useful bedfellow indeed.

It does, of course, cost significantly more than a regular mattress cover: $199 for the smallest version (queen), and more if you don't pre-order soon. The company aims to ship in August, but crowdfunded products like this one (which raised over $200,000 on Indiegogo) do tend to slip a little, so be patient.

Sweet dreams! Tips for getting a good night’s rest 4:02

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—Devin Coldewey