Happiest Baby Snoo User manual

USER GUIDE
IMPORTANT: READ CAREFULLY INSTRUCTION BEFORE
ASSEMBLY AND USE OF THE PRODUCT. KEEP FOR FUTURE USE.

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TABLE OF CONTENTS
MEET SNOO
SNOO AND YOUR BABY
PUTTING SNOO TOGETHER
DOWNLOAD THE HAPPIEST BABY APP
SECURING IN SNOO SACK
USING SNOO
DR. KARP’S TIPS
SNOO ACCESSORIES
CARING FOR SNOO
SAFETY INFORMATION
LETTER FROM OUR FOUNDER, DR. KARP
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MEET SNOO
The other new member of your family!
Congratulations!
Thank you so much for choosing SNOO Smart Sleeper® to help your baby—
and you—during these amazing first 6 months!
Designed by celebrated pediatrician, Dr. Harvey Karp, SNOO is a totally new
type of parent support to help your baby be rested, safe, healthy...and happy!
What’s SNOO’s secret?
• It’s the only bed that perfectly mimics the continuous gentle
rocking motion and rumbling sound that your baby loved in the
womb. (It helps soothe babies...like driving in the car all night,
but without you ever leaving your bed!)
• It detects your baby’s cries and automatically responds with
gradually increasing white noise and tiny jiggles, often calming
fussing…in under a minute.
• It oers extra peace of mind by keeping your baby safely on the
back—all night.* (Stomach sleeping is associated with a higher risk
of infant sleep death.)
*When used as directed.

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Indications for Use
The SNOO Smart Sleeper bassinet plus the SNOO Sleep Sack are jointly intended
to facilitate a supine position during sleep. Infants who are placed in a supine sleep
position are at lower risk of SIDS/SUID. The device is intended for home use by
caregivers of infants from birth to 6 months of age, who are not yet able to roll over
consistently.
Notes Regarding Indications for Use: The American Academy of Pediatrics states
that babies should be placed on their “[b]ack to sleep for every sleep. To reduce the
risk of sleep-related death, it is recommended that infants be placed for sleep in a
supine (back) position for every sleep by every caregiver until the child reaches 1
year of age. Side sleeping is not safe and is not advised.”1
The National Institute of Child Health and Human Development also states that
caregivers should “place all babies—including those born preterm and those with
reflux—on their backs to sleep until they are 1 year old.”2
The SNOO is demonstrated to facilitate a supine position during sleep; however,
the SNOO has not directly demonstrated a reduction in the incidence of SIDS/SUID.
This device is indicated for use in infants from birth to 6 months of age, until
babies can roll over consistently. “Roll over consistently” means the baby has
demonstrated—on multiple occasions—the ability to roll from stomach to back
during sleep. Parents should be advised that prone (stomach) sleeping is never
safe when a baby is swaddled or in the presence of soft bedding or toys in the sleep
environment.
1 Moon, R. Y., Carlin, R. F., Hand, I. (2022, June 21). Sleep-related infant deaths: Updated 2022
recommendations for reducing infant deaths in the sleep environment. American Academy of Pediatrics.
Pediatrics (2022) 150(1)
2 https://safetosleep.nichd.nih.gov/

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Contraindications
DO NOT USE this product if the infant can push up on hands and knees, or has
reached 6 months of age, whichever comes first.
DO NOT USE this product if the infant has any condition that would prevent
placement in the supine position.
Note: If your baby has a medical condition and you have questions about
whether the back sleeping position and/or SNOO are appropriate, please
contact your child’s health care provider prior to use.
Adverse Events
When using the SNOO Smart Sleeper, the following adverse events have been
reported at or below expected rates: acid reflux, head flattening, aspiration,
contusion, skin inflammation, and death.

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SNOO AND YOUR BABY
The first 6 months.
Whenever you need a break—to fix a meal, take a shower, care for other kids,
or get much needed rest—SNOO will be your faithful assistant, ready to help
24/7…month after month!
Within the first week, SNOO will help your baby*:
• Fall asleep faster.
• Sleep more at night.
• Cry less—and calm more quickly.
But, that’s just the start of SNOO’s benefits!
By 2-3 months, SNOO:
• Adds 1-2+ hours to your baby’s sleep.
• Helps reduce dangerous rolling to the stomach.
• Gives your baby all the comfort of swaddling—without the risks.
• Helps your baby sleep through growth spurts, stuy noses, teething,
and sleep regressions. (Without SNOO, these can abruptly upset your
baby’s sleep pattern, causing frequent night waking.)
By 3-6 months, SNOO perfects your baby’s sleep:
• Automatically sleep trains—rarely a need for “cry it out!”
• SNOO’s special Weaning feature makes graduating to a crib a breeze.
*Infants over 6-weeks of age may take 3-7 days to adjust and show improved sleep.

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FPO - photo of mom snapping SNOO legs in (lifestyle)

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PUTTING SNOO TOGETHER
It’s a snap!
• Open the box and place your SNOO upside down on a clean floor.
• Snap each leg into the base. (Line up each red and blue arrow on the
legs with a matching colored arrow on the base.)
• Screw each knob in—all the way. (No need to over-tighten.)
• To detach the legs, unscrew each knob all the way, pinch the two grey
clips and pull out each leg.

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• Insert the thin electrical supply jack into the red circle on the bottom of SNOO.
• Flip SNOO onto its feet and plug it in.
• Attach the soft cable guide on a leg near your wall socket. Place the thin
cable into the guide.
• SNOO’s Activity Button will flash a white light. When it stays constantly
white...SNOO is ready to use and be paired with the App!
Wi-Fi® OFF Wi-Fi® ON
Power Button - Turns SNOO on/o.
Wi-Fi® Button - Turns Wi-Fi® on/o.

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Includes: 1-SNOO; 1-Mattress; 1-Water-Resistant Cover; 1-Organic Cotton Sheet;
3-Organic Cotton SNOO Sacks (S in SNOO; M, L in boxes); 4-Legs; 1-Cable
Guide; 1-Power Supply.
Please read all instructions before using.
• SNOO is recommended for use until your baby is 6 months old, can
consistently roll from stomach to back during sleep, or can push up on hands
and knees, whichever comes first.
• In SNOO, ALWAYS place your baby on the back in a Happiest Baby SNOO
Sack, making sure the sack wing loops are properly attached to the safety
clips. (See page 33, “SUFFOCATION HAZARD.”)
• Firmly close the Velcro inner band around your baby and ALWAYS attach the
leg flap to keep your baby from sliding into the sack and to prevent the inner
band from opening or riding up to your baby’s neck. (See page 34, “PREVENT
STRANGULATION HAZARD.”)
• Always fully close the zipper—top and bottom—to prevent your baby from
sliding into the sack and to prevent the inner band from riding up to the baby’s
face. (See page 33, “SUFFOCATION HAZARD.”)
• Never place anything under the SNOO mattress to raise your baby’s head.
(See page 34, “PREVENT STRANGULATION HAZARD.”)
Contents of SNOO box

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DOWNLOAD THE HAPPIEST BABY APP
Our App lets you pick the perfect settings for your baby!
Parents’ often share that these are among their favorite App features:
Motion Limiter – Great for the 1st month!
Your SNOO comes with Motion Limiter already turned on. This lets SNOO respond
to cries with all 4 levels of sound...but only the 2 lower levels of motion. Very fussy
babies may need the extra help of the higher levels of motion. If your baby seems
to need extra soothing, you can try turning o Motion Limiter after a few weeks.
Level Lock – Helpful for babies who wake too often.
Some babies sleep better when SNOO stays on one constant level...all night. If your
baby doesn’t seem to like higher motion + sound, try locking SNOO on Baseline. If
your baby is waking too often, they may need a little extra jiggly motion + sound...
try locking on Level 1 or 2 all night for a few weeks.
Motion Start Level – Extra soothing for fussier babies.
Many babies love extra motion, all night. When you use this setting, SNOO will start
on Level 1 or 2, but still respond to cries with higher levels of soothing. This often
helps babies sleep through a stuy nose, sleep regressions...even teething.
Responsiveness – Makes SNOO more—or less—sensitive to your baby’s sounds.
This lets SNOO react faster to soft cries or slower to loud breathing and grunts.
Volume – Pick the sound level your baby prefers.
If your baby prefers a little more, or less, sound to be soothed or stay asleep, you
can change the soothing volume.
Sleep Log – Automatically tracks and reports your baby’s progress.
A daily update of your baby’s sleep. Tracks your baby’s sleep over time.
Fun to share!
Weaning – Makes it a snap to transition your baby from SNOO to the crib.
At 5-6 months, use this setting to give your sleeping baby constant soothing
sound—but no motion. The motion only comes back on when your baby cries.

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• On a flat surface, unzip the SNOO Sack and lay the inner bands fully
open and apart.
• Lay your baby on the back, on top of the open sleep sack and bands.
Note: The shoulders are to be about 2” higher than the top of the
sleep sack.
• Straighten your baby’s arms, pull the inner bands around them,
and secure your infant’s arms at the sides snugly with the Velcro.
Note: The bottom edge of the bands should cover the wrists.
• Raise the between-the-legs flap and Velcro it to the closed inner band.
• Bring the SNOO Sack snugly over each shoulder, and zip the SNOO Sack
completely closed, top and bottom. Make sure the soft protective zipper
hood is in place and well below the chin.
• Once your baby has more control of their arms, you can try undoing the
snaps at the shoulders to free one or both arms.
SECURING IN SNOO SACK
Becoming a master swaddler!
Swaddling may look a little odd to us, but it reminds babies of the cuddling they
loved inside the womb. Wrapping will help your baby cry less and sleep longer.
SNOO Sack is a safer, easier swaddle! It secures to little clips to keep your baby
safely on the back all naps/all night.
Ready to swaddle? Here’s how:

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USING SNOO
Let the fun begin!
Plug SNOO into an electric outlet. The Activity Button’s white light will blink for
several seconds and then turn a steady white.
Now that the bed and App are set up and your baby is snug, we suggest giving a
nice feeding—and a good burping—to prepare your baby to SNOOze!
Place your baby in SNOO:
• Lay your baby on their back upon the mattress in the SNOO bassinet—
feet at the end near the Activity Button.
• Slide the small loops, located at the ends of each SNOO Sack wing, over
the safety clips—on the right and left side of the bassinet—to secure your
swaddled baby on the back.
Note: For safety, ONLY use SNOO when your baby is swaddled in the SNOO Sack
with the inner band and leg flap firmly closed, zipper fully closed (top and
bottom), and wings attached to the clips.

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Turn SNOO on
Push the Activity Button. The white light will turn blue and SNOO will start gently
rocking and shushing.
Note: If the bed does not start—and the Activity Button is flashing white—check
that both wing loops are fully slid onto the safety clips.
Let SNOO work
SNOO will gently rock and shush your baby for all naps and all nights. And, it will
automatically respond to your baby’s cries—moving through increasing levels of
white noise and motion—to find the perfect rhythms to soothe the fussing.
As the bed responds, each level is shown by a new SNOO Activity Button color:
Blue > Purple > Green > Yellow > Pink.
Blue is like gently rocking your baby in your arms.
Purple is like driving around your neighborhood.
Green is like taking a fast hike with your baby in a sling.
Yellow is like quickly bouncing on a yoga ball.
Pink is like a jiggly subway ride or driving with your baby on a bumpy road.
Once your little one is calmed, SNOO will slowly return to the gentle Blue
Baseline level.
If your baby’s cries don’t stop within a minute, don’t worry, just stop the bed
for a feeding or cuddle. (If crying lasts 2-3 minutes, SNOO automatically stops
and the Activity Button turns Red.)
Note: If the Activity Button is blinking white, please check that the loops of the
swaddle wings are fully attached.