Happiest Baby, founded by Harvey Karp, MD, FAAP (author of Happiest Baby on the Block) makes the SNOO Smart Sleeper. SNOO provides constant womb rhythms (sound, rocking, safe swaddling) and adds 1+ hours to night sleep (n-72,649, p<0.0005). It keeps babies securely swaddled on the back reducing non-supine sleep by 95+% (it’s a FDA designated breakthrough device: potential to prevent SUID). US families rent SNOO for <$5/d and scores of companies offer free SNOO rentals as a benefit. 100+ hospitals use SNOO to help new moms (boost BF, reduce bed sharing), improve infant care (preemies, NAS, s/p surgery), support nurses (a survey of 204 nurses found each SNOO reduces nurse labor 4-6 hours/day).