Watch Video: How SNOO Works
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet
SNOO Smart Sleeper Bassinet

SNOO Smart Sleeper Bassinet


When baby sleeps...everyone sleeps!

Price: $1,695.00
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*An additional $185 shipping fee will be applied to SNOO purchases sent to Hawaii and Alaska.
**Return SNOO within 30 days of delivery, or cancel your order before it has shipped (up to 1 business day before shipping). Restocking fee ($199) will apply to all returns. Customer responsible for return shipping. Restrictions apply for individual items returned from bundle(s).
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About SNOO Baby Bassinet and Sleeper

Created by celebrated pediatrician
Dr. Harvey Karp (Happiest Baby on the Block),
SNOO is a smarter and safer baby bed!

For the first 6 months, like an extra set of hands, SNOO boosts sleep with gentle rocking and soothing…for all naps and nights. Its quick response often calms upsets in under a minute. And our “5-second swaddle” reduces dangerous rolling.

Why SNOO is Parents' Favorite Bassinet


    Adds 1-2 hours of sleep per night with constant calming womb-like motion + sound


    Automatically sleep trains, making it easy to transition to a crib…with little need to

  • YOUR 24/7 HELPER

    Your extra set of hands, SNOO helps whenever you need a break: to shower, work, cook, or sleep


    Automatically responds to your baby’s fussing…even when you’re asleep


    Helpful settings, daily sleep report, and tips from Dr. Karp


    Secure swaddling prevents rolling to an unsafe position during sleep


    Soothes upsets with increasing motion + sound, often calming crying in under a minute

SNOO is the first—and only—medical device to receive De Novo authorization from the FDA for its ability to keep sleeping babies safely on their backs. Babies who are placed on the back for sleep are at a lower risk of SIDS/SUID.

FDA De Novo authorized


  • Product

    • Breathable mesh walls for healthy air flow
    • 5 levels of specially designed sound + motion to soothe babies and boost sleep
    • Premium motor for quiet and reliability
    • Advanced algorithm can tell baby cries from room noise
    • For babies 0-6 months old who cannot roll over consistently
      (meaning they have rolled from stomach to back—multiple times—during sleep)
  • Size

    • SNOO in Box

      • Dimensions: 38” L x 22” W x 15.5” H;
      • Weight: 50 lbs
    • SNOO Assembled

      • Dimensions: 35.75” L × 19” W × 31” H (with legs);
      • Weight: 38 lbs

What's Included

  • SNOO Smart Sleeper

  • 3 ivory SNOO Sacks (S, M, L) made with organic cotton

  • SNOO sheet made of GOTS certified organic cotton

  • Mattress and water-resistant cover

  • Unlimited access to sleep consultants, 7 days/week

  • 1-year
    limited warranty

Download our App

Download our App

  • Control SNOO remotely by picking the best motion and white noise levels for your baby
  • View your baby's sleep patterns—and track daily and weekly progress—with the Sleep Logs
  • Customizable settings—from gentle newborn mode to easy weaning
  • Helpful tips and fun info from Dr. Harvey Karp


What is SNOO?

Created by renowned pediatrician Dr. Harvey Karp and MIT-trained engineers, SNOO, quite simply, is a smarter and safer baby bed that can add 1 to 2 hours of sleep each night for babies 0 to 6 months old. SNOO's one-of-a-kind safe swaddling, gentle swaying, and all-night shushing was designed to mimic the soothing sensations of the womb, which activates Baby's innate calming reflex—or nature's “off switch” for crying and “on switch” for sleep. Plus, SNOO is responsive, meaning it automatically responds to Baby's fussing with the just-right increase of shushing and motion to help lull your sweet pea back to sleep…often doing so in under a minute. Finally, SNOO is the first—and only—medical device to receive De Novo Authorization from the Food and Drug Administration (FDA) for its ability to keep sleeping babies safely on their backs. Back-sleeping is the number one safe-sleep recommendation by all public health authorities in the United States. SNOO is so safe, in fact, that over 150 hospitals all over the world place their tiniest patients in SNOO!

Is SNOO worth it?

If safety, peace of mind, better sleep, and your mental wellbeing are top priorities for you, then YES, SNOO is worth it! Pediatrician-designed, FDA-De Novo-Authorized SNOO allows babies to be safely swaddled on their backs—the safest sleep position—for up to six months. At the same time, research has shown that babies who sleep in SNOO clock 1 to 2 more hours of sleep each night than other babies…and many sleep 9 hours or more by 2 to 3 months old. Plus, another study found that SNOO can help parents feel more rested and less likely to feel mentally stressed. Finally, research in the journal PLOS ONE concluded that swaddling, sound, and movement work equally well for soothing babies, whether it comes from SNOO or a loving adult…making SNOO a much-needed helper for parents whose “village” is too far away to offer middle-of-the-night soothing that allow weary parents to rest.

Benefits of SNOO Baby Bassinet

SNOO's womb-like rocking, all-night white noise, and snug embrace of a safe swaddle are specially designed to calm fussing, reduce night waking, and improve sleep. In fact, SNOO has been shown to add 1 to 2 hours of baby sleep each night. And SNOO's secure swaddle features patented looped “wings” that slide onto SNOO's built-in safety clips, keeping babies from rolling to the stomach during sleep. No wonder SNOO is the only medical device to receive De Novo classification from the FDA for its ability to keep sleeping babies safely on their backs! In short, SNOO:

  • Securely swaddles Baby on the back. That means once your precious little one is swaddled in their cozy SNOO Sack and clipped into the bassinet, they'll remain safely on their back all sleep long.
  • Triggers the innate calming reflex,which is Baby's “off switch” for crying and “on switch” for sleep.
  • Adds roughly 1 to 2 hours sleep each night.And most SNOO babies sleep 9 hours or more by 2 to 3 months.
  • Automatically respondsand adjusts to your baby's fussing with motion and sound, often calming babies in under a minute.
  • Reduces the need for sleep training.SNOO's weaning mode allows for a gentle transition to crib.
  • SNOO boosts confidence.With more sleep, less crying, and fewer worries about Baby's safety, parents tend to feel like they're doing a good job meeting their lovebug's needs. And more sleep helps a new parent feel more like themself, which contributes to overall wellbeing.

SNOO Smart Baby Bassinet Features

SNOO is not your average bassinet. In fact, it's not even your average smart bassinet! SNOO is the first and only medical device to receive De Novo Authorization from the FDA for its ability to keep sleeping babies safely on their backs. And SNOO is the only smart bassinet to include all these sleep-promoting and safety features:

  • Safe rocking:Babies love motion (after all, during their 9 months in the womb, they were gently rocked with every movement). However, unlike baby swings that hold babies at an unsafe incline, SNOO provides babies a firm, flat surface as it rocks. Additionally, SNOO's special swaddle is secured to the bassinet so you can rest assured that your bub will remain safely on their back all sleep long.
  • All-night white noise:Research has shown that white noise can help 80% of babies fall asleep in just 5 minutes.
  • Safe swaddling:SNOO's easy 5-Second Swaddle is hip-safe, never unravels, keeps babies safely on the back, and features breathable mesh at the shoulders and legs to keep babies comfy and cool all sleep long.
  • Easy to customize:Thanks to the free mobile App, you can adjust your bassinet's motion, sound, and cry sensitivity.

What is a Smart Sleeper?

While the term “smart” is sometimes used for any device that's plugged in or has a connected App, simply being able to move, make noise, or operate remotely doesn't make a bassinet smart! A “smart” sleeper relies on information from the user (aka your baby) to work more efficiently. SNOO, for instance, is designed to respond to your baby's cries with a sophisticated algorithm that mimics the actions of an experienced caregiver. That means SNOO automatically chooses the best motion (a gentle rock for sleep, a slightly faster jiggle for fussing babies), as well as the best white noise (soothing rain for a sleeping baby, and louder womb-like sounds for an upset baby) to help calm your little one. And once your baby settles, SNOO reduces its response back to your selected baseline.

How is a Smart Sleeper better than baby rockers?

While baby swings and rockers are fantastic at calming babies—and allowing parents a short break—they're not safe for babies to sleep in. The American Academy of Pediatrics (AAP) notes that babies should never be placed on an incline to sleep and never sleep in a swing or baby rocker. That's because a baby's head can flop forward, possibly obstructing their airway, causing suffocation. And if left unrestrained, babies can roll over and asphyxiate.

With SNOO, however, your baby is safely rocked while in their own sleep space on a firm, flat surface, which is what's recommended. But it's important to know that not all rocking bassinets are the same. Once your little one starts wiggling and rolling, the motion of a rocking bassinet can make it easier for them to become trapped against one side, which is a clear suffocation risk. But when your baby sleeps in SNOO you can rest assured that they're in the first—and only—medical device to receive De Novo classification from the Food and Drug Administration (FDA) for its ability to keep sleeping babies safely on their backs. Back-sleeping is the number one safe-sleep recommendation by all public health authorities in the United States, including the AAP and the Centers for Disease Control and Prevention.

Why choose SNOO over other baby bassinets?

There is no other bassinet like SNOO. When compared to other so-called smart bassinets, none of them can keep babies sleeping safely on their backs for all naps and nights. This makes it possible to keep your lovebug safely swaddled for up to 6 months. (When babies are not in SNOO, swaddling must stop once Baby begins to roll.) Plus, SNOO works all night long and automatically responds to Baby's cries with pediatrician-designed white noise and safe rocking specifically designed to soothe Baby back to sleep. And, of course, SNOO—coupled with a properly secured SNOO Sack—is the only FDA cleared Infant Sleep System on the market to keep babies safely sleeping on their backs…the position that all pediatricians recommend.

Pros and Cons of Traditional Baby Bassinets vs SNOO

A traditional baby bassinet features a safe, flat, firm sleep surface—which is ideal. And they're compact enough to keep in your room, which is what the American Academy of Pediatrics recommends for at least your baby's first six months. SNOO features these very same safe-sleep musts, plus some new ones. For instance, unlike traditional bassinets, SNOO keeps Baby securely swaddled on the back, which is the ideal safe-sleep position for babies. In fact, SNOO is the first—and only—medical device to receive De Novo Authorization from the FDA for its ability to keep sleeping babies safely on their backs. At the same time, SNOO offers Baby white noise and gentle rocking all night long—both proven sleep-helpers. And SNOO is designed to automatically respond to Baby's cries with the just-right increase of soothing sounds and motion, expertly lulling them back to sleep.

Why is SNOO better than sleep positioners?

Traditional infant sleep positioners—like baby nests, docks, pods, pillow loungers, and crib wedges—are unsafe! These products feature dangerous bolsters, wedges, or pillows that babies can roll onto—or turn into—and suffocate. (Babies are often not strong enough to get themselves back to a safe position once rolling into a dangerous spot.) Unlike risky infant sleep positioners, SNOO does not have the pillows, cushions, or bolsters that are associated with suffocation deaths. Instead, SNOO features a universally recommended flat, firm sleep surface—and it's the first—and only—FDA cleared infant sleep positioner that keeps sleeping babies on their backs for all naps and night sleeps.

How to Use SNOO Baby Bassinet

It's easy! Once you plug in and set up your smart sleeper, just follow these steps:

Step 1: Swaddle your baby in a SNOO Sack.
  • Open the sack and inner bands and lay your baby down with their shoulders 2 to 3” higher than the neckline of the sack.
  • Straighten each arm and snugly pull and secure the inner arm bands across Baby's chest. The bottom edge should cover most of Baby's hands, leaving just their fingers exposed. Next, secure the leg flap.
  • Now, tug the top of the SNOO Sleep Sack up and over each shoulder and fully zip the sack. (The neckline should be well below your child's chin.)
Step 2: Place Baby in SNOO.
  • When you lay Baby in SNOO, make sure their feet are at the end nearest to the Activity Button.
  • SNOO Sacks feature wings with a loop on each side. Slide the SNOO Sack's loops onto SNOO's safety clips on either side of the bassinet. (Do this whether SNOO is on or off.)
Step 3: Turn SNOO on.
  • Press the Activity Button on the front of SNOO. It'll blink white for about a minute as SNOO “boots up.” Once it stops blinking, push the button again. This time, the light will turn blue and SNOO will turn on and begin gently rocking and playing white noise.
  • When your baby fusses, SNOO waits a few seconds before responding, allowing them to self-soothe. If crying continues, SNOO's gentle rocking gets slightly faster and the white noise gets a bit louder. SNOO then moves through four levels of increased sound and motion, until fussing stops. SNOO is designed to “time out,” turn off, and alert parents via the App after a couple minutes of continued crying, indicating that Baby likely needs a change, a feed, or extra comfort.
Step 4: Customize your SNOO experience.
  • To increase SNOO's level of sound and motion, simply push SNOO's Activity Button for several seconds. As you continue to push, the button will change color and SNOO will advance to the next level of sound and motion. (You can adjust SNOO's sound and motion with the mobile App, too.)
  • You can reduce SNOO's level of activity with the mobile App. (To stop SNOO, push the activity button once.)
  • SNOO has a special feature called Motion Limiter that allows parents to restrict SNOO's motion to the first two levels (recommended for babies under 1 month). Go to the Settings icon of the App, click on your baby's profile, and toggle Motion Limiter on and save. When Motion Limiter is on, you'll see a M icon in the upper right corner.
  • When Baby is just about ready to move to the crib, engage SNOO's Weaning Mode, which offers Baby sleep-boosting sound all night—but no motion, unless upset. To turn on Weaning Mode, go to the Settings icon on the App. Under the Modes category, toggle to Weaning. When the Weaning is on, a W icon will show in the screen's upper right corner.

Should I rent SNOO or buy SNOO baby bassinet?

When deciding between renting SNOO or buying SNOO, it's smart to consider your space, your budget, and whether you think you're going to have more babies. For instance, buying SNOO might be the best option if you're hoping to pass the bassinet onto siblings, if you have the room to store SNOO between babies, and/or you don't want to deal with the logistics of making a return. However, renting SNOO might be for you if you're looking for flexibility, cost savings, and a more Earth-friendly option. That's because renting SNOO…

  • Is environmentally sound. Each SNOO rental is fully refreshed, sanitized, and certified 100% safe before being sent to its next home, ensuring less waste in landfills. (While you may think buying used is also environmentally smart, know that Consumer Reports advises against purchasing second-hand cribs and bassinets for safety reasons.)
  • Offers flexibility. When renting SNOO, you can commit at your own pace and keep it as long as you need it (minimum rental period applies).
  • Is more affordable. When going month-to-month, SNOO costs $159 a month or about $5 a day. (Plus, reconditioning and return fee.)!
  • Saves space. Renting means that you don't need to make room to store your SNOO after your baby has moved on to the crib.

Is SNOO now a medical device?

Yes. The FDA De Novo Authorization qualifies SNOO as a legally authorized medical device in the United States.

Does the FDA De Novo Authorization mean that SNOO might be covered as an employee benefit?

Thousands of new parents already get a free 6-month SNOO rental as a wellness benefit from their employer. Over 50+ companies (like JP Morgan, Snapchat, Activision-Blizzard, and Under Armour) rate SNOO as one of their most popular employee benefits.

To get your employer to join our Corporate Rental Program so you can qualify for a FREE 6-Month SNOO Rental, reach out to your HR or Benefits Manager to ask them to join employers that provide SNOO as a benefit for their employees. For more information, please reach out, or have your HR or Benefits Manager connect with

Is SNOO eligible for purchase through tax-preferred
accounts (HSA, FSA, HRA)?

Not at this time, but we hope that it will be in the future! In the meantime, 1000s of parents get free SNOO Rentals for 6-months as a wellness benefit from their employer. Over 50+ top corporations (from JP Morgan to Snapchat) offer it and—with the FDA's De Novo Authorization—we expect more and more new companies to begin supporting their new parents with SNOO.

To get your employer to join our Corporate Rental Program so you can qualify for a FREE 6-Month SNOO Rental, reach out to your HR or Benefits Manager to ask them to join employers that provide SNOO as a benefit for their employees. For more information, please reach out, or have your HR or Benefits Manager connect with

Why is the FDA's De Novo Authorization so important?

Every year, ~3,500 American infants die during sleep. A big reason for these continued thousands of deaths is stomach sleeping. About two-thirds of SUID cases happen when babies roll to—or are placed on—the side or stomach. (The risk is even greater when a baby rolls over when swaddled and/or if parents have put soft, loose bedding in the infant's sleep space.) For this reason, all public health programs recommend that babies are placed to sleep on the back. The National Institutes of Health says back sleeping is “the single most effective action that parents and caregivers can take to lower a baby's risk of SIDS.” Being put in bed on the back is a key safe sleep recommendation of the American Academy of Pediatrics. And, the CDC notes that “babies who sleep on their backs are much less likely to die of SIDS than babies who sleep on their sides or stomachs.”

Happiest Baby's SNOO Smart Sleeper is a true advance in infant safety. SNOO is the first baby bed to receive FDA De Novo authorization for its effectiveness at keeping sleeping babies on the back. (De Novo means the product is a whole new and unique class of devices). SNOO is recommended for babies to use until 6 months or they can roll consistently (meaning they have rolled from stomach to back—multiple times—during sleep). Back sleeping is the safest position for sleeping infants. However, SNOO has not demonstrated a reduction in the incidence of SIDS/SUID.

Customer Reviews

Based on 3367 reviews
Dominique (Las Vegas, NV)
Best investment

So far this has been a great investment for my 2 week old. She gets about 2-3 stretches of sleep during the night and we only keep the Snoo on the baseline setting. Most of the time it puts her right back to sleep after changing and diapering. My favorite part about the Snoo is that it allows me to practice safe sleep practices without and temptation to sleep with her on my bed. The swaddle and clips also help ease my anxiety.

Hi Dominique,

Knowing that your family feels at ease that your baby sleeps safely on the back in SNOO is a dream come true! We love to hear that your little one is soothed and safer for every sleep. We’re excited to be on this journey with your family!

Sonja from the Happiest Baby Team

Sami Pakshir (Glenview, IL)
Saved us

We got hours of sleep back thanks to the snoo. Our fave baby item to exist!!!

Hi Sami,

It brightens our day knowing SNOO is your family's favorite for better sleep!


Jess from the Happiest Baby Team

Jessica W (Redondo Beach, CA)
Peace of mind after our preemie came home from the NICU!

We were a bit on the fence about the Snoo so we decided to rent one just in case our kiddo didn’t like it. Best decision we ever made! Our guy was born 6 weeks early and spent the first 3 weeks of his life in the NICU. The nurses placed him in all kinds of unsafe positions (belly, side) and let him use a pillow, bolsters, blankets and sleep on an incline. When he first came home we realized the small Snoo sleep sack was too big for his barely 5 pound body, so we had to wait a few days to enroll in their beta program for the extra small sleep sack.

For the first 3 days we used the Snoo as a regular bassinet with a SwaddleMe swaddle and no movement. My husband and I didn’t sleep for those 3 days, because our baby would not sleep on his back! He was so used to the positions in the NICU that he’d immediately roll onto his side, pressing his face into the side of the Snoo. He once almost got himself onto his belly. We were terrified. When the xs sleep sack came and we were able to strap him in we were so relieved!

The white noise is also soothing for him and our fears that he’d sleep through hunger pains are not a thing. He is relaxed with the movement and noise, but still definitely lets us know when he’s hungry or needs something.

We’re consistently getting 3-4 hour stretches of sleep at night with an 8 week old and we’re so grateful! He’s now just over 7 pounds and still fits pretty nicely into the xs sleep sack, but I think we’ll graduate him to the small next week.

Thanks Snoo!

Hi Jessica,

It warms our hearts to hear SNOO provides peace of mind by keeping your little one safely on the back while helping him sleep. Being a new parent is a lot of work and we’re excited to hear SNOO made things a little easier & safer for your family.

For safe use of SNOO and SNOO Sack, babies should always be zipped up in their SNOO Sacks all the way and clipped into SNOO. For babies who don’t quite fill out the Small SNOO Sack, parents can try adding layers underneath or double swaddling to add bulk to their body. Our team is always available to provide support and make sure little ones are swaddled properly for the safest, happiest experience.

Thanks for sharing & happy SNOOzing!

Sonja from the Happiest Baby Team

Girl mom

I'm in love with my snoo. First because my baby started rolling on her side at about 5 days old. This made the snoo sack invaluable to keeping her safely on her back. Then when I finally got the snoo set up for its use with movement and sound, my baby went from sleeping for about an hour and taking 30 min to get to sleep, to now sleeping 5 hours at just over 1 month old and falling asleep sometimes as soon as we put her securely in her snoo sack in the snoo. Expensive but worth the cost

Hi there,

This made our day! We love to hear that you felt at ease knowing your baby slept safely on the back with SNOO, and that the gentle movement, shushy sounds, and cozy swaddle created the perfect soothing environment for your baby to get longer stretches of sleep.

We understand SNOO is an investment and our team strives to make safer sleep more accessible to families in the future.

Happy SNOOzing!

Sonja from the Happiest Baby Team

Life changing aka sleep matters!

My daughter was sleeping in1-3 hour stream he’s for the first 3 months. I rented her a snoo to try and baby slept 7 hours the first night!

Hi there,

We're overjoyed to hear that your little one is getting longer sleep stretches with SNOO! Thanks for including us on your journey!


Sonja from the Happiest Baby Team