Find Your Favourites
Backed by 30+ Years of Expertise
Dr. Harvey Karp is a world-renowned paediatrician and the celebrated author of the classic parenting guides, The Happiest Baby on the Block and The Happiest Toddler on the Block. His pioneering discoveries—like the 5 S’s and Toddler-ese—have empowered millions of parents with insights and actions to better understand young children…and to make parenting a whole lot easier.
For over 30 years, I’ve dedicated my work to sharing common sense, science-based—and effective—lessons that I learned while taking care of thousands of children and families. Thanks, so much, for your interest and trust in my ideas and for visiting this website. My team and I hope to give you—and parents all around the world—insights and tips to help you feel great and to be successful in your incredibly important job—having a healthy, happy family.
Meet Your Favourite 24/7 Helper
Babies are lulled best when given calming womb-like rhythms
Automatically responds to upsets—with gently increasing motion + sound—that fussy babies love
Ready 24/7 to help you soothe baby when you need to eat or catch some Zzzs
Keeps babies on the back to give you precious peace of mind
Effortless sleep training by 6 months…with little need to cry-it-out
Automatically responds to fussing…even when you are asleep
Safe Sleep
SNOO’s secure swaddling system keeps sleeping babies on their backs for all nights and naps. Back-sleeping is the top safe-sleep recommendation from all public health authorities.
REAL PARENTS, REAL SUCCESS
Noah's Mom
'Baby boy sleeps well and is calmed back to sleep when fussy so mom and dad can sleep more too (he slept 7 hours last night!). Its built in swaddle gives us peace of mind knowing that Noah is safely positioned on his back for sleep. A literal gift sent straight from SNOO heaven!'
Elodie's Mom
'After loving my experience with my first, SNOO became even more essential the 2nd and 3rd time around, acting like an extra set of hands when I needed a safe spot for the baby while I helped my other kids. I do not think it was a coincidence that I have had 3 good sleepers, SNOO was a night nurse and sleep coach all in one.'
Maeve's Mom
'The amount of hours we were able to sleep soundly in the early weeks and throughout the first few months of newborn life were priceless...We will absolutely be using the SNOO for all our babies to come!'
Harlowe's Mom
'My husband and I thank SNOO before bed every night...it saved our sanity! SNOO is like having another set of hands to rock my baby when I can't. Both my girls loved their SNOO.'
Brooks' Mom
'He loves SNOO’s cosy womb-like swaddle that secures him on the back (the safest sleep position). The sleep tracking data has helped us create a sleep schedule we all love.'
Noah's Dad
'SNOO provided us with peace of mind knowing our baby is safe and sound all night. As a first time dad, sleep is essential and knowing my family can rest is priceless.'
Liam's Mom
'I couldn't live without our SNOO. It helped sleep train our little one and adds 1-2 hours of sleep for my little one (and me) per night. It combines cutting-edge science with nurturing care for your baby's best sleep...'
Ansel's Mom
'As first-time parents, we were clueless about baby sleep until we found SNOO. We’ve established such good sleep habits from day one with SNOO.'
Makoa's Mom
'Our little one finally falls asleep on his own...no holding him like we were for the first 3 weeks. The best parenting advice I took was getting this smart sleeper. If your little one craves contact sleep you need this.'
In the Press
America's top pediatrician,
in the palm of your hand!
A FREE 9-month Premium Subscription will be included with all authorised SNOO purchases.*
*Authorised SNOO purchases are made directly through Happiest Baby or an authorised partner. Restrictions apply— see details. If you did not purchase an authorised SNOO, you can pay a monthly fee to access a Premium Subscription.
1,000+ articles & tips based on your stage—pregnancy, infancy, or toddlerhood
Log your baby's sleep, feeds, pumping sessions, and nappy changes
Meet your baby's sleep preferences with advanced SNOO settings
America's top pediatrician,
in the palm of your hand!
A FREE 9-month Premium Subscription will be included with all authorised SNOO purchases.*
*Authorised SNOO purchases are made directly through Happiest Baby or an authorised partner. Restrictions apply— see details. If you did not purchase an authorised SNOO, you can pay a monthly fee to access a Premium Subscription.
1,000+ articles & tips based on your stage—pregnancy, infancy, or toddlerhood
Log your baby's sleep, feeds, pumping sessions, and nappy changes
Meet your baby's sleep preferences with advanced SNOO settings
