Many parents know a surefire way to get their babies to sleep is to drive them around in the car.

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But what if you didn't have to go anywhere or use any gas to get that sweet, sweet car sleep?

Scientists in the UK have created a collection of lullabies that incorporates "the soothing sound frequencies of a combustion engine," which they say is "a major contributor to a child falling asleep."

SWNS Digital reports, "The Nissan LEAF ‘Dream Drive’ lullaby, which is made up of five three-minute tracks, contains a combination of white, pink and brown noise varied in tone to create a hypnotic soundscape."

Check it out here.