# Happiest Baby

> Happiest Baby is the Los Angeles company behind SNOO, the responsive robotic bassinet that rocks and shushes crying newborns back to sleep and clips them safely onto their backs. Founded by pediatrician Dr. Harvey Karp and his wife Nina Montee Karp, it turned a 2002 parenting book into a $1,700 machine, a monthly rental business, an employer benefit, and in 2023 the first product ever cleared by the FDA to keep sleeping babies on their backs.

- **Founded:** 2001
- **Headquarters:** Los Angeles, United States
- **Founders:** Dr. Harvey Karp (Founder & CEO), Nina Montee Karp (Founder & President)
- **Team size:** ~150 employees
- **Products:** SNOO Smart Sleeper Bassinet, SNOO Sack / Sleep Sack, SNOO Rental Program, Sleepea 5-Second Swaddle, Happiest Baby App & Premium Subscription
- **Notable:** First and only device to receive FDA De Novo authorization for keeping sleeping babies safely positioned on their backs (2023), Named to Time's Best Inventions list (including 2023), SNOO added to the Smithsonian's permanent collection - the first bassinet to be included

## Products & services

- **SNOO Smart Sleeper Bassinet** — A responsive robotic bassinet that rocks and plays white noise, escalating its motion and sound in response to a baby's cries, then calming as the baby settles. Patented swaddle wings clip in to keep infants on their backs.
- **SNOO Sack / Sleep Sack** — Organic-cotton swaddle marketed as the world's first 5-second swaddle; its wings clip into SNOO to prevent rolling and are central to the FDA authorization.
- **SNOO Rental Program** — Monthly rental of SNOO for roughly $159/month, matched to the short window (about 6 months) babies actually use a bassinet.
- **Sleepea 5-Second Swaddle** — A standalone swaddle for use in any crib or bassinet, designed for easy escape-proof wrapping and crib transition.
- **Happiest Baby App & Premium Subscription** — Companion app that controls SNOO, logs sleep, and offers premium features such as Sleepytime and Car-Ride modes via a roughly $20/month subscription.
- **The Happiest Baby on the Block (book & method)** — Dr. Karp's bestselling book and video method introducing the 5 S's - Swaddle, Side/Stomach, Shush, Swing, Suck - the calming framework SNOO automates.

## Achievements

- First and only device to receive FDA De Novo authorization for keeping sleeping babies safely positioned on their backs (2023)
- Named to Time's Best Inventions list (including 2023)
- SNOO added to the Smithsonian's permanent collection - the first bassinet to be included
- National Sleep Foundation Innovation of the Year
- More than 600 million hours of infant sleep logged

## Latest updates

- **2023-03** — FDA grants SNOO De Novo authorization, making it a Class II medical device and the first cleared to keep sleeping babies on their backs.
- **2023-06** — SNOO becomes HSA/FSA eligible through a Truemed partnership, letting families pay with pre-tax dollars.
- **2023-11** — SNOO named to Time's 200 Best Inventions of 2023.
- **2024-08** — Happiest Baby introduces a ~$20/month premium app subscription, moving some previously free features behind a paywall and drawing customer backlash.
- **2025-01** — The Washington Post covers the subscription backlash as emblematic of the broader debate over adding fees to connected devices.

## Links

- Website: https://happiestbaby.com
- LinkedIn: https://www.linkedin.com/company/happiest-baby-inc-
- Twitter/X: https://twitter.com/happiestbaby
- YouTube: https://www.youtube.com/@HappiestBaby
- Instagram: https://www.instagram.com/happiest_baby
- Facebook: https://www.facebook.com/thehappiestbaby
- TikTok: https://www.tiktok.com/@happiestbaby

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Published by YesPress — https://yespress.io
Last updated: 2026-08-20