Happiest Baby develops the SNOO Smart Sleeper, a medical device authorized by the FDA that uses responsive motion and sound to soothe infants and promote safe sleep on their backs, reducing the risk of Sudden Infant Death Syndrome (SIDS). By increasing sleep duration by 1-2 hours per night, SNOO helps parents manage sleep deprivation while naturally training babies to sleep independently.
Funding
$59M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.


BCFounders
Product
Problem
New parents often struggle with sleep deprivation and worry about infant safety, particularly Sudden Infant Death Syndrome (SIDS). Traditional bassinets lack the features to consistently soothe infants and ensure they remain on their backs, a key recommendation for SIDS prevention.
Solution
Happiest Baby offers the SNOO Smart Sleeper, an FDA-authorized medical device designed to soothe infants and promote safe sleep. The SNOO uses responsive technology to detect a baby's fussing and automatically adjusts motion and sound to calm them, often adding 1-2+ hours of sleep per night. Its unique swaddle sleep sack secures the baby on their back, preventing risky rolling while providing the comforting sensation of being swaddled. The Happiest Baby mobile app allows parents to track sleep patterns, customize SNOO settings, and access expert advice from Dr. Harvey Karp.
Target Audience
The primary target audience is new and expecting parents seeking a safe and effective solution to improve infant sleep and reduce the risks associated with SIDS.
Features
- Integrated sensors that respond to a baby's cries with appropriate levels of soothing motion and white noise
- Patented SNOO Sack swaddle that clips into the bassinet to prevent rolling over
- Mobile app to remotely control SNOO settings, track sleep, and receive alerts
- Weaning mode to gradually reduce motion, easing the transition to a traditional crib
- Customizable white noise options that mimic the sounds of the womb
- Adjustable sensitivity settings to tailor the SNOO's responsiveness to each baby
- 100% organic cotton SNOO sacks and fitted sheets available
- SNOObear, a take-along lovey that plays SNOO sounds and responds to cries
- SNOObie, a smart soother that combines a sound machine, nightlight, and sleep trainer