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Bioengineers at the University of Texas have developed a unique mattress-and-pillow system that uses heating and cooling to signal to the body that it's time to go to sleep.

Why it matters: A lot of us could use more ZZZ's.

How it works: By heating the neck, hands and feet, the new mattress stimulates the body to trigger a sleepy feeling.

Details: The researchers tested mattresses with 11 subjects, per a new paper in the Journal of Sleep Research.

What they're saying: "It is remarkable how effective gentle warming along the cervical spine is in sending a signal to the body to increase blood flow to the hands and feet to lower the core temperature and precipitate sleep onset," said Kenneth Diller, an engineering professor at UT and an expert in heat and temperature regulation for therapeutic devices.

Flashback: The researchers published a study in 2019 that found taking a warm bath an hour or two before bed helped people fall asleep quickly and sleep better.

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