They’re free.

By Michal Addady / Fortune
April 20, 2016
Michael Nagle

This story originally appeared on fortune.com

If you’re looking for some shuteye before a flight, JetBlue has you covered.

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The airline just became the first to install EnergyPods at a U.S. airport. The company announced in a press release that it unveiled its new napping pods at the Terminal 5 concourse in New York’s JFK airport on Tuesday. The pods were designed by MetroNaps, a company that describes itself as the “premier provider of workplace rest facilities.”

Similar EnergyPods have already been installed at Toronto’s Pearson Airport and the Aspire Lounge at Luton Airport in London. Some have also been installed in offices, hospitals, universities, and fitness centers.

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“At JetBlue we are always focused on making the most comfortable experience for our customers, both on and off the plane,” JetBlue’s director of corporate social responsibility, Icema Gibbs, said in the press release. “We are thrilled to be the first commercial airline to bring EnergyPods to our terminal.” The pods have built-in speakers and also offer you the option to plug in your own headphones.

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They’re offered free of charge on a first come, first served basis, and each traveler is allotted just 20 minutes of nap time. The device will wake you up when your time runs out with lights, music, and vibrations.

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