Fortune wondered how Brady’s “athlete recovery sleepwear,” created in partnership with Under Armour, would work for non-athletes.

The high-tech $200 pajamas help you recover faster from exercise and sleep better, Under Armor claims, thanks to bioceramic particles that are woven into the garments. Those particles, say the company, absorb infrared wavelengths emitted by the body and reflect them back as something called “far infrared.”

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