Give your little dreamer comfortable and cozy nap time style in our sleep suits. Soft and warm like a wearable blanket, our sleep suits are available with short and long sleeves, and in a range of 5 TOG levels to suit any season. The flexible design lets your little one move freely and the breathable bamboo-blend material promotes temperature regulation while they drift off to dreamland. 2-way zippers and bottom snaps add ease to changing and dressing.

Sleep Suits

Bedtime Never Looked So Good Ultra-soft fabrics, check. Safety and comfort, check. Beautiful hand-drawn prints, check. Our Nest Designs sleep bags are a wearable blanket that checks all the boxes that your little bub needs to be cute and cozy all night long. Designed to fit newborns up to 18 months, our sleep sacks come in a variety of styles and charming prints to suit any baby. Nest Designs Sleep Bags Nest Designs sleep bags encloses the baby securely enough for safety, but loosely enough for them to move their limbs comfortably. From swaddle designs to sleep sacks without the swaddle for babies that don’t like being constrained, we’ve got you covered. For different climates, we have sleep sacks that are sleeveless, long-sleeved, or have removable sleeves in a variety of TOGs to make sure your baby is comfortable. All of our sleep sacks have a two-way zipper so parents can deftly manoeuvre a 3am diaper change without disturbing the baby too much. Our Sleep Bag Materials Baby’s skin is super delicate, and at Nest Designs, we never sacrifice quality. Nest Designs sleep bags are made of either 100% GOTS Organic Cotton or Bamboo. Fabrics that are skin-friendly for baby, lightweight, moisture wicking, breathable, and ultra-soft wrap your little one in comfort while they’re in dreamland. We use eco-efficient Sorona fill to keep your little one nice and toasty. Want to learn more about our fabrics? Check out our materials page. When to Use a Sleep Sack for Baby Sleep sacks should be used with young babies as a safe alternative to a loose blanket. Our sleep bags are intended for all babies through the year; keep your little bub warm with a seasonally-appropriate sleep sacks. Sleep sacks are usually introduced around three months, but our sleep bags incorporate swaddles into some designs so you can use them from birth. Once your baby becomes a toddler, they can graduate to a loose blanket. Benefits of a Sleep Bag Safety and comfort are our biggest priority when it comes to bedtime. Here are some perks of using a sleep bag: Your baby gets better sleep because of the security they feel in an enclosed blanket (which means more sleep for parents too!) It keeps material from covering your baby’s face, unlike loose sheets and blankets that don’t stay put through the night It gives a correct and consistent body temperature, so the baby doesn’t overheat. To Swaddle or Not to Swaddle Some babies don’t like to be swaddled, and that’s okay, you can use a newborn sleep bag right away for a baby that doesn’t like being constrained. Swaddling should make your baby feel like they’re snug as a bug and mimic the feeling of being in the womb. You’ve seen this burrito-style wrap; it’s meant to restrict arm and leg movement in baby’s first few months and helps minimize wake-ups from their natural startle reflex while keeping their face safe from scratching. Switch to a sleep bag before they’re rolling over on their own—you don’t want them to get stuck facedown. We give you the best of both worlds. If you’re not sure whether your baby will respond to swaddling or you want an option that gives a smooth transition from swaddling to a sleep bag, we have designs that have removable swaddle wings. It’s a terrific option for parents that second-guess how to swaddle properly too, because our design is easy to use. Let’s Talk TOG All of our sleep bags have a Thermal Overall Grade (TOG) rating. This number indicates what kind of temperature the sleep bag is intended for. We have five different TOG ratings. A lower TOG, such as 0.25 TOG, 0.6 TOG, and 1.0 TOG, is made with lightweight fabric and meant for spring or summer. A heavier TOG, such as 2.5 TOG or 3.5 TOG are thicker and constructed for cooler months in fall and winter. FAQs About Our Sleep Bags Why should my baby use a sleep sack? Safety and comfort! A sleep sack keeps fabric away from your little one’s face while they’re asleep and keeps them secure and comfortable like an all-encompassing hug. How should a Nest Designs sleep bag fit the baby? Make sure you’re using a sleep bag intended for your baby’s age/size. Your baby should only take up ¾ of the bag, leaving the other ¼ for them to move around a little bit. Why should I choose a sleep sack instead of a sleep suit? There are definite perks to both options. Some reasons to choose a sleep sack is that they’re better for smaller babies, you can layer more clothes underneath, and they generally fit for longer than sleep suits as they offer more room to grow. What does a baby wear under a sleep bag? Dress them in whatever works best for the temperature of the room, keeping in mind the TOG rating of the sleep bag. Babies have a very charming way of letting you know if they’re too hot or cold (hello, crying!). You can put pajamas or onesies underneath, or let them sleep in just a diaper if it’s comfortable for them. Which sleep bags are best for warm seasons? Choose a sleep bag with a lighter TOG rating, such as 0.25 TOG, 0.6 TOG, and 1.0 TOG. Which sleep bags are best for cold seasons? A heavier TOG, such as 2.5 TOG or 3.5 TOG Do I want long or short sleeves on a sleep bag? Depending on the temperature and what’s most comfortable for your baby, select no sleeves or short sleeves in warmer temperatures and sleeves for cooler temperatures. For a versatile option, pick a sleep sack with removable sleeves. How should I clean a sleep sack? It’s super easy to keep your Nest Designs sleep bag clean, just toss it in the wash! A few instructions: wash it in warm water with similar colors and tumble dry on low. Don’t bleach, iron, or dry clean. Poof! It’s ready for another night of slumber. Want more info on our sleep bags? Read our in-depth Q&A on the Nest Designs Blog

<h2 style="text-align: left;" class="p1">Bedtime Never Looked So Good</h2>
Ultra-soft fabrics, check. Safety and comfort, check. Beautiful hand-drawn prints, check. Our Nest Designs sleep bags are a wearable blanket that checks all the boxes that your little bub needs to be cute and cozy all night long. Designed to fit newborns up to 18 months, our sleep sacks come in a variety of styles and charming prints to suit any baby.
 
<h3 style="text-align: left;" class="p1">Nest Designs Sleep Bags</h3>
Nest Designs sleep bags encloses the baby securely enough for safety, but loosely enough for them to move their limbs comfortably. From swaddle designs to sleep sacks without the swaddle for babies that don’t like being constrained, we’ve got you covered. For different climates, we have sleep sacks that are sleeveless, long-sleeved, or have removable sleeves in a variety of TOGs to make sure your baby is comfortable. All of our sleep sacks have a two-way zipper so parents can deftly manoeuvre a 3am diaper change without disturbing the baby too much.
 
Our Sleep Bag Materials
Baby’s skin is super delicate, and at Nest Designs, we never sacrifice quality. Nest Designs sleep bags are made of either 100% GOTS Organic Cotton or Bamboo. Fabrics that are skin-friendly for baby, lightweight, moisture wicking, breathable, and ultra-soft wrap your little one in comfort while they’re in dreamland. We use eco-efficient Sorona fill to keep your little one nice and toasty. Want to learn more about our fabrics? Check out our <a href="https://www.nestdesigns.com/pages/our-fabrics" data-mce-href="https://www.nestdesigns.com/pages/our-fabrics">materials page</a>.
 
When to Use a Sleep Sack for Baby
Sleep sacks should be used with young babies as a safe alternative to a loose blanket. Our sleep bags are intended for all babies through the year; keep your little bub warm with a seasonally-appropriate sleep sacks. Sleep sacks are usually introduced around three months, but our sleep bags incorporate swaddles into some designs so you can use them from birth. Once your baby becomes a toddler, they can graduate to a <a href="https://www.nestdesigns.com/collections/baby-blankets" data-mce-href="https://www.nestdesigns.com/collections/baby-blankets">loose blanket</a>.
 
Benefits of a Sleep Bag
Safety and comfort are our biggest priority when it comes to bedtime. Here are some perks of using a sleep bag:
Your baby gets better sleep because of the security they feel in an enclosed blanket (which means more sleep for parents too!)
It keeps material from covering your baby’s face, unlike loose sheets and blankets that don’t stay put through the night
It gives a correct and consistent body temperature, so the baby doesn’t overheat.
 
To Swaddle or Not to Swaddle
Some babies don’t like to be swaddled, and that’s okay, you can use a newborn sleep bag right away for a baby that doesn’t like being constrained. Swaddling should make your baby feel like they’re snug as a bug and mimic the feeling of being in the womb. You’ve seen this burrito-style wrap; it’s meant to restrict arm and leg movement in baby’s first few months and helps minimize wake-ups from their natural startle reflex while keeping their face safe from scratching. Switch to a sleep bag before they’re rolling over on their own—you don’t want them to get stuck facedown.
We give you the best of both worlds. If you’re not sure whether your baby will respond to swaddling or you want an option that gives a smooth transition from swaddling to a sleep bag, we have designs that have removable swaddle wings. It’s a terrific option for parents that second-guess how to swaddle properly too, because our design is easy to use.
 
Let’s Talk TOG
All of our sleep bags have a Thermal Overall Grade (TOG) rating. This number indicates what kind of temperature the sleep bag is intended for. We have five different TOG ratings. A lower TOG, such as 0.25 TOG, 0.6 TOG, and 1.0 TOG, is made with lightweight fabric and meant for spring or summer. A heavier TOG, such as 2.5 TOG or 3.5 TOG are thicker and constructed for cooler months in fall and winter.
 
<h2 style="text-align: left;" class="p1">FAQs About Our Sleep Bags</h2>
Why should my baby use a sleep sack?
Safety and comfort! A sleep sack keeps fabric away from your little one’s face while they’re asleep and keeps them secure and comfortable like an all-encompassing hug.
 
How should a Nest Designs sleep bag fit the baby?
Make sure you’re using a sleep bag intended for your baby’s age/size. Your baby should only take up ¾ of the bag, leaving the other ¼ for them to move around a little bit.
 
Why should I choose a sleep sack instead of a sleep suit?
There are definite perks to both options. Some reasons to choose a sleep sack is that they’re better for smaller babies, you can layer more clothes underneath, and they generally fit for longer than sleep suits as they offer more room to grow.
 
What does a baby wear under a sleep bag?
Dress them in whatever works best for the temperature of the room, keeping in mind the TOG rating of the sleep bag. Babies have a very charming way of letting you know if they’re too hot or cold (hello, crying!). You can put <a href="https://www.nestdesigns.com/collections/toddler-pyjamas" data-mce-href="https://www.nestdesigns.com/collections/toddler-pyjamas">pajamas</a> or <a href="https://www.nestdesigns.com/collections/baby-toddler-onesies" data-mce-href="https://www.nestdesigns.com/collections/baby-toddler-onesies">onesies</a> underneath, or let them sleep in just a diaper if it’s comfortable for them.
 
Which sleep bags are best for warm seasons?
Choose a sleep bag with a lighter TOG rating, such as 0.25 TOG, 0.6 TOG, and 1.0 TOG.
 
Which sleep bags are best for cold seasons?
A heavier TOG, such as 2.5 TOG or 3.5 TOG
 
Do I want long or short sleeves on a sleep bag?
Depending on the temperature and what’s most comfortable for your baby, select no sleeves or short sleeves in warmer temperatures and sleeves for cooler temperatures. For a versatile option, pick a sleep sack with <a href="https://www.nestdesigns.com/collections/sleep-bags?pf_t_sleeve=Sleeve%3A+Removable+Sleeves" data-mce-href="https://www.nestdesigns.com/collections/sleep-bags?pf_t_sleeve=Sleeve%3A+Removable+Sleeves">removable sleeves</a>.
 
How should I clean a sleep sack?
It’s super easy to keep your Nest Designs sleep bag clean, just toss it in the wash! A few instructions: wash it in warm water with similar colors and tumble dry on low. Don’t bleach, iron, or dry clean. Poof! It’s ready for another night of slumber.
 
Want more info on our sleep bags?
<a href="https://www.nestdesigns.com/blogs/all/what-are-baby-sleep-sacks" data-mce-href="https://www.nestdesigns.com/blogs/all/what-are-baby-sleep-sacks">Read our in-depth Q&amp;A on the Nest Designs Blog</a>

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mom and dad, to maternity essentials, to nursing PJs that bring convenience to nighttime feedings, and breathable, soft base layers, we've got you covered when it comes to comfort."}" data-sheets-userformat='{"2":897,"3":{"1":0},"10":1,"11":4,"12":0}' data-mce-fragment="1">Enjoy calming and cozy comfort as you snuggle with your little love, unwind before bed, or get ready to drift off to dreamland in our soothing loungewear and pajamas. Designed for a sense of ease, our relax-ready pieces are crafted in natural materials and offer an unrestricted feel. From classic pajamas for mom and dad, to maternity essentials, to nursing PJs that bring convenience to nighttime feedings, and breathable, soft base layers, we've got you covered when it comes to comfort.

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Features

FABRIC COMPOSITION
100% organic cotton

CARE INSTRUCTIONS
Wash before use 
Wash in cold water with like colours
Dry flat or tumble dry low only
Do not bleach, iron, or dry clean

To learn more about the fabric features of this garment (and how we define each factor), read our fabric features guide.

Fabrics & Care

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Our cozy onesies keep up with your little explorer all day, offering stretch and comfort that make them feel loved.

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Our cozy onesies encourage your little bubs to explore the world around them through movement. Soft on skin, our eco-friendly organic cotton fabric has a kiss of spandex for stretchiness that keeps up with your little one from morning to bedtime. Features GOTS-certified organic cotton that's hypoallergenic, non-toxic, and GMO-free. (Learn more about our eco-friendly fabrics). Shoulder snaps expand the neck hole, making dressing and undressing your baby or toddler easier. Bottom snaps for easy diaper changes at any time of day or night.

Our cozy onesies encourage your little bubs to explore the world around them through movement. Soft on skin, our eco-friendly organic cotton fabric has a kiss of spandex for stretchiness that keeps up with your little one from morning to bedtime.
Features
<ul data-mce-fragment="1">
<li style="font-weight: 400;" data-mce-fragment="1" data-mce-style="font-weight: 400;">
GOTS-certified organic cotton that's hypoallergenic, non-toxic, and GMO-free. (<a href="https://www.nestdesigns.com/pages/our-fabrics" data-mce-fragment="1" data-mce-href="https://www.nestdesigns.com/pages/our-fabrics">Learn more about our eco-friendly fabrics</a>).
</li>
<li style="font-weight: 400;" data-mce-fragment="1" data-mce-style="font-weight: 400;">
Shoulder snaps expand the neck hole, making dressing and undressing your baby or toddler easier.
</li>
<li style="font-weight: 400;" data-mce-fragment="1" data-mce-style="font-weight: 400;">
Bottom snaps for easy diaper changes at any time of day or night.
</li>
</ul>
<ul data-mce-fragment="1"></ul>

Long Sleeve Onesie

Feather Grey / 12M-18M

Feather Grey / 18M-24M

Feather Grey / 2T-3T

Stars White / 12M-18M

Stars White / 18M-24M

Stars White / 2T-3T

Nest Design's long-sleeve organic cotton onesie is healthy and gentle on baby's skin and feels very soft, too. Read more on nestdesigns.com.

Organic Cotton Long Sleeve Onesie | Nest Designs

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We love the fabric! It is very soft and has a great fun pattern for our toddler. We will definitely be ordering more

Fun toddler onesie

Great material— better than bamboo cotton for my baby. Wish to have more design with this material.

Great material— better than bamboo

Very comfortable. Doesn’t shrink after washing for many times. Bought many with different sizes.

Very comfortable. Doesn’t shrink after

Material is good. Pattern is super cute. Tend to be small.

Material is good. Pattern is

This was a gift and the mom to be loved the print

Customer review

A nice design, easy on and off and so comfortable for baby.

Very easy to get on and off. The fold over cuff is brilliant, no need for mittens that don’t stay on. A great design.

Startle Stop & Swaddle Sleep Bags Size Guide

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TOG stands for  Thermal Overall Grade, an industry measurement telling you the warmth  of a particular item—including baby sleep sacks and sleep bags.  TOG ratings help parents know the warmth that their baby’s sleepwear  provides—the higher the TOG, the warmer the product. At Nest Designs,  our TOGs range from 0.25 to 4.0.

Organic Cotton Long Sleeve Onesie

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