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As any fan of Rihanna knows,lingerie sex videos pajamas are back. But one Japanese smart clothing brand is pushing the envelope in a way even RiRi couldn't manage.

Tokyo-based Xenoma debuted a collection of smart pajamas, called the e-skin Sleep & Lounge collection, at the Consumer Electronics Show's (CES) Unveiled showcase Sunday.

A Xenoma supermodel in her smart PJs. Credit: rachel kraus / mashable

It has two main styles: A lightweight classic grandpa look, which is loose, airy, and soft to the touch, as well as a jersey kangaroo pocket sweatsuit that feels cozy enough to keep you warm through winter.

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But these aren't just any PJs. They monitor the wearer's heart rate, breathing, and vital signs while the wearer sleeps. They also provide insights on sleep patterns, keep track of activity level, and — move over Apple Watch — will set off an alarm if it detects that you've tripped and fallen.

A sensor inside the pajama pockets detects falls. Credit: rachel kraus / mashable

While anyone could theoretically sport these high-tech duds, the pajama collection is intended for elderly people. Xenoma CEO and co-founder Ichiro Amimori says that pajamas are a natural health tool for this demographic — more so than wristbands that require you to charge them daily and remember to put them on. Some doctors agree that those requirements make typical wrist wearables not well suited to an elderly clientele.

"Regular wearables are not really wearable," Amimori told Mashable.

My boyfriend is stylish AND safe. Credit: RACHEL KRAUS / MASHABLE

Xenoma plans to launch the e-skin Sleep & Lounge collection in the U.S. in the spring. It has a partnership with Tokyo brand Urban Research for a Japanese launch in May. We can't wait to slip into something a little more comfortable — and safe!

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