Happiest Baby has offices in Los Angeles and Santa Monica. Happiest Baby SNOO, the safest and smartest baby bed and 5-second swaddle, 5 S's and baby sleep advice, and toddler tips brought to you by Dr. Harvey Karp. See the full list at Craft. Learn about Craft real-time company insights. How many offices does Happiest Baby have? Happiest Baby is headquartered in Los Angeles, CA and has 2 office locations across 1 country. Where are Happiest Baby offices? Happiest Baby headquarters is located at 3115 S La Cienega Blvd, Los Angeles. Happiest Baby has 2 offices.