"Minutes later, when the alarm sounds again, the sleeper must get up out of bed and search for Clocky, " says the 25-year-old scientist.

CNN: Clever clock stops you sleeping late

Brewster, who grew up in Boston, came to the field as a green entrepreneur, wanting to find something "that would get me pumped up to get out of bed every morning, " he says.

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What they want to get them up and out of bed every morning is food-water-shelter.

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