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Happiest Baby

Baby TechLos Angeles, California, United States

Happiest Baby is an American infant sleep company founded in 2001 by the paediatrician Harvey Karp, author of The Happiest Baby on the Block. Its flagship product, the SNOO Smart Sleeper, is a responsive bassinet combining rocking motion, white noise and a clip-in sleep sack, and is the only bassinet authorised by the US Food and Drug Administration as a medical device for keeping infants on their back during sleep. The company also sells swaddles, white noise devices and certified refurbished SNOO units.

1StartupFox story
2001Founded
Baby TechSector
Sept 2026Latest coverage

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Frequently Asked

What is Happiest Baby?

Happiest Baby is an American infant sleep company founded in 2001 by the paediatrician Harvey Karp, author of The Happiest Baby on the Block. Its flagship product, the SNOO Smart Sleeper, is a responsive bassinet combining rocking motion, white noise and a clip-in sleep sack, and is the only bassinet authorised by the US Food and Drug Administration as a medical device for keeping infants on their back during sleep. The company also sells swaddles, white noise devices and certified refurbished SNOO units.

Who founded Happiest Baby?

Harvey Karp is the founder or leader of Happiest Baby on record at StartupFox.

What is the latest news on Happiest Baby?

The most recent StartupFox coverage is “Cradlewise Raises $12M Building $1,799 Cribs in Pune and Selling Them in America” (4 September 2026). All stories are listed on this page.

Sources & updates

This profile is compiled by the StartupFox desk from company announcements, regulatory and exchange filings (RoC/MCA, NSE/BSE) and our own reporting.

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