- Free over $100
- 30-day returns
- Secure checkout
- Human support
Moogco Purchase Protection
Ask about this product
Real answers about fit, safety, shipping & more — powered by Mia.
Mia is an AI assistant. For order-specific help she'll connect you to our team.
- Free U.S. shipping over $100
- 30-day easy returns, not the right fit? Send it back.
- Secure checkout, encrypted payment, buyer protected
- Real human support, U.S. based, replies fast
- Moogco Purchase Protection, free with your order. Damaged, not as described, or lost on the way? We refund it. How it works
Owned by a small family MoogCo Baby is a family-owned shop. Every order supports a real family who personally stands behind what we sell — thank you for shopping small. 💚
Your Baby’s Snug Hug for Safe, Sound Sleep
Give your baby the gift of better sleep with the Swaddelini® Swaddle Sleep Sack, the world’s first 3D knit, seamless baby swaddle. Designed for ultimate comfort and safety, it provides a perfect blend of gentle compression and breathable stretch, helping your baby feel calm, secure, and ready for rest.
Why Parents Love Swaddelini
- Self-Soothing Support: Our patented Hug Technology® mimics a parent’s gentle embrace to calm startle reflexes (Moro reflex) and encourage longer, deeper sleep.
- Safe Sleep Design: Created in alignment with American Academy of Pediatrics (AAP) safe sleep guidelines — snug around the chest, loose around the hips, and breathable from every angle.
- Grows with Your Baby: Converts easily into a wearable blanket as your baby starts rolling — simply leave their arms out for safe movement.
- Made in the USA: Knit with soft, high-performance yarns for durability, stretch, and skin-safe comfort.
- Easy Diaper Access: Bottom flap design makes nighttime changes simple without unwrapping your baby.
Perfect for Every Stage
The Swaddelini Sleep Sack is ideal from newborn through toddler stage. As babies transition to rolling, it adapts to their natural movement — supporting self-soothing without overheating or restriction.
Recommended by Parents & Professionals
Thousands of parents and pediatric experts trust Swaddelini to promote safe, restorative sleep. It’s a thoughtful, practical gift for new parents and an essential for every baby registry.
Key Features
| Age Range | Newborn – Rolling |
|---|---|
| TOG Rating | 0.2–0.3 (lightweight, all-season) |
| Material | 3D stretch knit nylon |
| Machine Washable | Yes |
| Origin | Made in the USA |
Help your baby sleep safely, longer, and more peacefully — wrapped in comfort that moves and breathes like a loving hug.
All orders are processed and shipped within a maximum of 2 to 5 business days. Please note that this is an estimated timeline and does not constitute a guarantee, as national holidays and other external factors may impact final delivery and shipping times.
🚚 Free Shipping and Discount Clarification
For qualifying orders of $100 or more, the maximum available discount applied to your order is $30.
Our patented Hug Technology gently mimics a parent's embrace to calm the Moro startle reflex. That steady, secure feeling helps babies settle faster and stay asleep longer.
The 3D stretch knit breathes from every angle with a lightweight 0.2 to 0.3 TOG rating. Your baby stays cozy without overheating, night after night.
When your baby starts rolling, the sack converts into a wearable blanket by leaving the arms out. One piece supports safe sleep from newborn through toddler.
A good swaddle keeps your baby secure and safe while fitting the season and their stage.
- Check the fit: Look for snug support around the chest and room to move at the hips. This protects healthy hip development while still calming the startle reflex.
- Match the TOG to your room: A lightweight TOG around 0.2 to 0.3 suits most rooms year round. Pair it with the right layers underneath rather than a heavier swaddle.
- Plan for the rolling stage: Choose a design that converts to arms-out use, so you can keep using it safely once your baby starts to roll.
- Prioritize breathability: Breathable knit fabrics help prevent overheating, which matters most for overnight sleep.
- Think about diaper access: A bottom opening makes late-night changes far easier and keeps your baby more settled.
When should I stop using the swaddle with arms in?
Once your baby shows signs of rolling, switch to arms out. This sack converts to a wearable blanket so you can keep using it safely through that transition.
Is it warm enough for winter or too warm for summer?
It is a lightweight, all-season design at 0.2 to 0.3 TOG. Adjust the clothing layers underneath to keep your baby comfortable in any room temperature.
How do I change a diaper without waking my baby?
The bottom flap opens for diaper access, so you can change your baby overnight without fully unwrapping them.
Can I machine wash it?
Yes, it is machine washable. The seamless 3D knit holds its stretch and shape through regular washing.
What size or age is this made for?
It is designed for newborns through the rolling stage, adapting to your baby's natural movement as they grow.
How does shipping and returns work?
We ship from a US warehouse with free US shipping on orders over $100, and we offer 30-day returns. Our human support team is happy to help if you have questions.
MoogCoSilverCups
MOOGCO Silver Nursing Cups 925k Silver - Protect Against Sore Breasts And Nipple Irritation
MoogCoSilverCups
The Original Silver Nursing Cups with Silicone Pads
Swaddelini
Grey Swaddle Sleep Sack
Swaddelini
Lavender Swaddle Sleep Sack
Swaddelini
Pink Swaddle Sleep Sack
MoogCoSilverCups
MOOGCO Silver Nursing Cups 999k Silver - BPA-Free for Babies & Toddlers
Swaddelini
Bamboo Blend Beige Swaddle Sleep Sack
Swaddelini
Blue Swaddle Sleep Sack
Dingle Dangle Baby
Dingle Dangle Diaper Changing Distractor
Sunflower Motherhood
Morning Sickness Box
Seven Lantern Lane
First Birthday Golf Bubble for Girls – Reversible Pink Gingham Skirted Bubble Outfit
Costway
Kids Outdoor Sandbox with Oxford Cover and 4 Corner Seats
Little Martin's Drawer
Little Martin's Portable Fetal Doppler - Hear Your Baby's Heartbeat Anytime - Rechargeable Batteries by USB - FDA Cleared
momjug
momjug breastfeeding water bottle
Swaddelini
Orange Swaddle Sleep Sack
MoogCoSilverCups
MOOGCO Silver Nursing Cups 925k Silver
Little Martin's Drawer
SpringBud FD-200B Fetal Doppler Hearbeat Monitor FDA Cleared
M4A
Shnuggle Toddler Bath Tub | Big Bath for bigger kids | Child bathtub seat support | Fits in shower and adult bath
Costway
All-Weather HIPS Kid's Adirondack Chair with with High Backrest and Armrests
Costway
Kids Picnic Table and Bench Set with Cushions and Height Adjustable Umbrella-Blue
Costway
Wooden Rocking Climbing Arch with Cushion 3-in-1 Montessori Kids Climber Rocker
dripfloats
Neutral Checkered Kids Float
BROOKLYN NEUTRAL
Green Gingham Splash Pad
Costway
Kids Sensory Swivel Chair Elephant 360° Spinning Chair with Non-Slip Metal Base
Ocodile.com
Solid Wood Kids Bunk Bed
Harp Angel Boutique
Organic Muslin Swaddle Blanket - Mocha Ditsy Floral Ruffle
Harp Angel Boutique
Baby Pink Organic Muslin Cotton 6-Layer Baby Blanket
Harp Angel Boutique
Organic Knit Romper - Mauve Pom
Harp Angel Boutique
Bow Turban Hat - Sage Ditsy Floral
Harp Angel Boutique
Knotted Baby Gown - La La Floral
Harp Angel Boutique
Ruffle Ribbed Short Set - Cream
Harp Angel Boutique
Organic Knit Sweater - Pink Pom
Harp Angel Boutique
Fleur Ribbed Baby Pajamas | Ruffle Zipper Romper
Harp Angel Boutique
Arona Blue Ribbed Baby Pajamas | Zipper Romper
Harp Angel Boutique
Fleur Ribbed Bow Turban Baby Hat
Harp Angel Boutique
Organic Knit Sweater - Cream Pom
Harp Angel Boutique
Knotted Headband - Fleur Ribbed
Harp Angel Boutique
Arona Blue Ribbed Baby Knot Hat
Harp Angel Boutique
Knotted Headband - Sage Ditsy Floral
Harp Angel Boutique
Two-Piece Short Set - Surf
Harp Angel Boutique
Two-Piece Short Set - Sage Ditsy Floral
Harp Angel Boutique
Fleur Ribbed Knotted Baby Gown
Harp Angel Boutique
Knotted Baby Gown - Arona Blue Ribbed
Harp Angel Boutique
Knotted Headband - Arona Blue Ribbed
Harp Angel Boutique
Copper Organic Cotton Muslin Baby Blanket
Harp Angel Boutique
Wildflower Bamboo Knotted Baby Gown
Harp Angel Boutique
Vintage Sunshine Bamboo Baby Stretch Swaddle Blanket
Harp Angel Boutique
Two-Piece Pajama Set - Wildflower
"I was lucky to find this pad for my grandson’s bassinet. I like how it is all natural snd organic. Just make sure to buy it a little bigger because it shrinks after washing. Also give ample time…"
"These helped at first but it seemed like the edges dug into my skin making it irritated (might have needed the larger ones). Once my milk came in more, milk would spill everywhere. I found that milk…"
"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"
"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"
"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"
"I cant belive they heal hours within you put them on. Totally a must while breastfeeding. Such a good quality"
"I used these for the first four weeks after baby came. It was during that phase where baby was so small he didn’t have a great latch and so I was getting sore nipples. This was great for protecting…"
"Only paci my breast feed three week old has accepted so far🙌🏼"
"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"
"I wore these for the first two months and they truly saved my breastfeeding journey - worked exactly how I expected. They gave instant relief. I basically wore them day and night for the first 6…"
"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
"I was lucky to find this pad for my grandson’s bassinet. I like how it is all natural snd organic. Just make sure to buy it a little bigger because it shrinks after washing. Also give ample time…"
"These helped at first but it seemed like the edges dug into my skin making it irritated (might have needed the larger ones). Once my milk came in more, milk would spill everywhere. I found that milk…"
"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"
"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"
"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"
"I cant belive they heal hours within you put them on. Totally a must while breastfeeding. Such a good quality"
"I used these for the first four weeks after baby came. It was during that phase where baby was so small he didn’t have a great latch and so I was getting sore nipples. This was great for protecting…"
"Only paci my breast feed three week old has accepted so far🙌🏼"
"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"
"I wore these for the first two months and they truly saved my breastfeeding journey - worked exactly how I expected. They gave instant relief. I basically wore them day and night for the first 6…"
"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."
"As a breastfeeding mom I truly couldn’t recommend these more. They literally SAVED MY LIFE in the newborn stage and then saved me again when teething started. They’re easy to use, easy to clean and…"
"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"
"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"
"Great value for the price compared to name brand silverettes. I only really used them for maybe 2-3 weeks, so I’m glad I didn’t spend the extra money when these got the job done just as well"
"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"
"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."
"As a breastfeeding mom I truly couldn’t recommend these more. They literally SAVED MY LIFE in the newborn stage and then saved me again when teething started. They’re easy to use, easy to clean and…"
"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"
"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"
"Great value for the price compared to name brand silverettes. I only really used them for maybe 2-3 weeks, so I’m glad I didn’t spend the extra money when these got the job done just as well"
"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"