2.5 TOG Sleep Sack - Midnight Blossom
Ultra-soft bamboo
Breathable fabric
2-way zipper
Extra leg room
Temp regulating
Safe, OEKO-TEX certified
Why 20000+ parents choose Belan.J
More Room to Move. More Nights of Real Sleep.
Babies who can stretch, kick, and roll freely sleep more soundly, and stay asleep longer. That's the whole idea behind the UltraWide™ Sleep Sack.
No more middle-of-the-night fussing from a sack that feels too tight. No more waking up because they can't find a comfortable position. Just the kind of freedom to move that lets your baby settle into real, restful sleep, and supports healthy hip and leg development along the way.
Designed by a mom who's been there.
As a mom of three with 12+ years in baby retail, Belan.J founder July kept hearing the same thing from parents: their babies wanted room to move, not a sack that pinned their legs together. So she designed one that gives them exactly that.
What that means for your nights
When your baby sleep better, you do too! You can rest so much better knowing that your baby will -
✓ Falls asleep easier: extra room to stretch, kick, and roll without feeling confined
✓ Stays asleep longer: no more waking from restriction or discomfort
✓ Supports healthy hip development: natural leg movement instead of forced-together positioning
✓ Stays comfortable all night: buttery-soft LuxeWeave™ Bamboo, gentle even on eczema-prone skin
✓ Stays cozy, not overheated: premium quilted filling, breathable for year-round use
✓ Easier for you too: two-way YKK zipper means faster diaper changes without a full wake-up
✓ Sewn-In Zipper Edges to Help Prevent Skin Irritation
Trusted by 20,000+ families who wanted a sleep sack that actually lets babies sleep and move, like babies.
Material Specs
✓ Premium LuxeWeave™ Bamboo Outer Shell (250 GSM)
Exceptionally soft, breathable, and gentle on delicate skin.
✓ 95% Viscose from Bamboo | 5% Spandex
Provides natural stretch for comfort and freedom of movement.
✓ Premium Quilted Filling
Lightweight insulation for cozy warmth without unnecessary bulk.
✓ UltraWide™ Signature Design
Extra room for babies to stretch, kick, and move naturally.
✓ Premium Two-Way YKK® Zipper
Makes diaper changes quicker and easier while providing lasting durability.
✓ Sewn-In Zipper Edges
Thoughtfully designed to help prevent irritation against baby's delicate skin.
✓ Machine Washable
Designed to maintain its softness and quality wash after wash.
Choose The Right Tog
TOG (Thermal Overall Grade) is a measure of how warm a sleep sack is. The higher the TOG rating, the warmer the sleep sack.
Choosing the right TOG helps keep your baby comfortable while they sleep without the need for loose blankets.
Remember that every baby is different. Some babies naturally sleep warmer or cooler than others, so always feel your baby's chest or back (rather than their hands or feet) to check if they're comfortable.
Which TOG Should I Choose?
Room Temperature Recommended TOG:
24–27°C (75–81°F) - 0.5 TOG
20–24°C (68–75°F) - 1.0 TOG
16–20°C (61–68°F) - 2.5 TOG
Shipping & Return
SHIPPING
Belan.J, a Vancouver-based company, offers shipping services within Canada, with FREE shipping on orders over $100, excluding remote areas. Orders are processed on business days (Monday to Friday, excluding federal holidays) and usually take 1 to 3 business days for processing, with delivery times varying from 3 to 5 business days, depending on the chosen service.
For international orders over $150, FREE shipping is available to the USA, taking approximately 2-3 weeks, while international orders may take around 20+ business days based on the selected service.
RETURNS
Belan.J has a 14-day return policy for items in their original condition, with a receipt or proof of purchase required. Customers can initiate a return by contacting the company. If the return is not due to an error on their part, customers are responsible for the return shipping costs.
Discounted items, sale/clearance items, and gift cards are final sale. For items purchased from retail stores, customers should contact the store directly for exchanges or returns.
Refunds are processed once returns are inspected, with the refund amount returned to the original payment method. Belan.J is not responsible for damages caused by washing and stain treatment, and pilling is not covered under warranty due to the nature of the fabric.
Read more:
Fabric Care
Bamboo fabric is cherished for its softness, breathability, and eco-friendliness, making it an ideal choice for baby clothing. However, it tends to develop pills due to the unique characteristics of bamboo fibers. To ensure your bamboo baby clothes stay in excellent condition and prevent pilling:
- Wash with care: Always follow care label instructions, using a mild detergent that is free of bleach or fabric softeners. Opt for gentle, low-temperature wash cycles to protect the delicate fibers.
- Avoid rough surfaces: Before washing, turn clothes inside out and avoid washing them with rough fabrics like towels or jeans, which can lead to friction and pilling.
- Air dry: Choose air drying over a tumble dryer to maintain the fabric's softness and prevent damage from high heat.
- Use a lint roller: If pills do appear, a lint roller or fabric shaver can easily remove them.
Furthermore, when washing bamboo baby clothes, steer clear of harsh detergents, fabric softeners, bleach, hot water, overloading the washing machine, aggressive cycles, long soaking, excessive sunlight, and wire hangers. Always adhere to care instructions to ensure your bamboo baby clothes remain soft and durable, providing comfort for your little one.
Read more:
Safety & Quality Assured
Every UltraWide™ sleepsack is independently tested to meet rigorous U.S. children's product safety standards. Our fabrics undergo strict flammability testing and are made entirely without chemical flame retardants, so you can shop with confidence knowing every detail is designed for safer, more comfortable sleep.
Why 20,000+ Parents Love our UltraWide™ Sleep Sack
Our signature UltraWide™ Design creates extra room for little legs to stretch, kick, and move naturally without feeling restricted. Combined with our premium fluffy filling and luxuriously soft LuxeWeave™ Bamboo, it creates a cozy sleep environment that babies love and parents trust.
Because when little ones sleep comfortably, the whole family rests better.
Designed by a Mom. Inspired by Parents
“As a mom of three and the founder of Belan.J, I've spent over 12 years helping families through my own baby stores, listening to parents every day about the products they loved, and the ones they wished were better.
One thing I heard time and time again was that many sleep sacks felt restrictive, leaving little ones with limited room to stretch, kick, and move naturally during sleep.
That's why I created the UltraWide™ Sleep Sack.
By designing a roomier bottom, babies have more space to move freely while staying cozy and comfortable throughout the night. It requires significantly more fabric than a traditional sleep sack, but I never saw that as an extra cost, I saw it as an investment in babies' comfort.
Because our little ones spend so many hours sleeping every day, every detail matters.
Since its very first launch, our UltraWide™ Sleep Sack has become one of parent’s most favorite products receiving thousands of comments and reviews. Knowing that families trust us to be part of their children’s bedtime routine is the greatest reward we could ever ask for!”
— July
Founder & Designer, Belan.J
Let customers speak for us
Amazing quality sleep sacks. 2.5 TOG great for long winters here in Ottawa. My twins love them! They wash well and are SO soft.
Received my two 2.5 sleep sacks in the mail today. They are so soft, cozy and seem warm and comfortable for little one. Definitely would buy again. Thank You Belan.J. for making beautiful sleep sacks!
The Belan J sleep sack was a game changer for us! My daughter is very picky and sensitive when it comes to materials that she wears or sleeps with. This 2.5 sleep sack is perfect for these chilly winter nights and she has slept noticeably better and longer since we acquired it. I can’t wait to purchase more!
Great fit, functionality and wear so far!
Got this for my daughter for the winter as her room struggles to reach 20 degrees. She’s so warm and cozy in this sleep sack and I don’t have to worry about her getting cold overnight ! She even wants to snuggle it when she’s awake. It’s so soft and I love the quilted fabric inside for breathability. I loved it so much, I bought two more! I’d highly recommend for chilly rooms.
So cute, soft and very warm for my little one
This is the best sleep sack brand. Breathable, adorable, warm and comfortable - I love that their sleep sacks are so wide. Best for “frog legs”
Love the soft fabric & breathability!
Very soft, warm, and cozy. Absolutely love it
Excellent quality. Super soft and warm for those fall/winter nights. I’ve tried other sleep sacks which were good but these are definitely worth the money. I’ve purchased three so far and will buy only Belan.J from now on.
These have been the best for room and feels like we have so much time to wear them. My baby loves them
Honestly our favorite find
Great material, very warm!
This is a gift for my great grandson! Love the feeling of pure comfort and the colors are perfect! I recommend this product to every parents! Best quality!
As usual Belan J you knocked this print out of the park. Softer then you can imagine and a perfect addition to my daughters collection. Would love to continue to see more floral prints. Thanks again!
My 3 month old little girl loves her sleep sack so much! She's warm, cozy, and sleeping really well. We keep our room around 19/20° and the 2.5 TOG is perfect. It's unbelievable how soft and pretty the material is. 😃
This bamboo sleepsack doesn’t just feel soft — it has that buttery, silky texture that makes you wonder why all baby fabrics aren’t made this way. The breathability is a standout feature too, keeping my son cozy without ever overheating. What surprised me most is how quickly he fell in love with it. By bedtime he’s already reaching for it, snuggling it against his cheek the way he would a favourite blankie. It’s become part of his little wind‑down ritual, and honestly, I can’t imagine our nights without it now.
The only sleep sack we use. It looks enormous but she’ll grow into it
I love these sleep sacks so much! My baby sleeps so well in these. The quality is excellent and they hold up very well in the wash (just follow the instructions, use cold water and hang to dry and they stay good as new!). I also love the prints. I would sleep in one of these if you made them for adults!
Comfy, cozy and Canadian. A quality product. We tried a few different brands but quickly decided Belan J is the only brand for our baby.
Overall I love these sleep sacks, we have several in different sizes for two kids. They super soft, the bottom is nice and wide allowing for free hip and leg movement, the prints are all beautiful and good quality and the sleep sacks are nice and warm. However there are two things that could be improved, the zippers can be a bit hard to do up and tend to catch the fabric so a sturdier zipper would be great. Then the top fabric is not sewn to the quilting on the seam opposite the zipper, this causes the to fabric and the quilting to slide apart and get twisted.
The best sleep sack I’ve ever purchased for my little one! They are made with such lovely material and are great quality. The penguins are also the cutest pattern ever! So happy with my purchase.
This was a gift for my Granddaughter but it was her Mom who was so excited when she saw and felt it.
Love this sleep sack! My baby sleeps better in it than any other brands! Plus the pattern is adorable and the material is super soft! Will be ordering more from this company for sure!!
Our little guy loves his sleep sack! He has so much room to move his legs around, it’s so soft and super warm for those colder months!
My baby loves the sleep sacks!
We love our 2.5 TOG sleep sacks for when winter comes! The ribbed fabric is especially cozy too.
Our baby has been in Belan J sleep sacks since she was 3 days old. I have had every TOG and size, and they have never failed us. My daughter will not go to bed without one on. Truly are worth every penny. I recommend them to everyone!! Don’t hesitate and just buy one… or two!!
So buttery soft and beautiful patterns! While we haven't had our daughter sleep in her Belan J. 2.5 tog sleepsack yet (not quite cold enough out), I am very confident that she will be nice and warm through our colder months.
The tiny trees are a beautiful design. The maid reason we buy the sleep sacks are for the amount of sleep the baby gets and how soft, comfy and roomy they are! My son can only use these sleep sacks because they are wide enough to fit his boots and bar for his medical condition!
Our Fabric
A lot of thought and care goes into the making of our bamboo fabric. We work closely with our suppliers to deliver the best in Bamboo with a lush weight and unparalleled softness for your little one. Did you know we custom select our fabric weight (250gsm) to achieve the coziest, most comfortable sleep and daywear?
Our fabric offers exceptional durability and maintains quality wash after wash, all certified by OEKO-TEX. Our raw white viscose staple fiber and rayon filament yarn, derived from wood pulp, meet stringent human-ecological standards, including those for baby articles, as certified by STANDARD 100 by OEKO-TEX and ISO17050-1.
Why Bamboo?
- Hypoallergenic: Gentle on babies' sensitive skin, reduces the risk of irritation and rashes.
- Breathable and Thermo-regulating: Keeps babies cool in hot weather and cozy during colder days.
- Moisture-Wicking: Helps keep babies dry and prevent discomfort.
- Anti-Bacterial and Anti-Fungal: Naturally repels odor-causing bacteria, keeping babies fresh and clean.
- Eco-Friendly: Sustainable and renewable, grows rapidly without harmful pesticides or excessive water usage.
- Free from harsh chemicals: Safe for your baby and the environment.
Frequently Asked Questions
View allHow do I care for my Bamboo Clothing?
To keep your Bamboo looking and feeling great, we recommend washing with cold water on a delicate cycle, using gentle detergent. Avoid mixing other fabrics such as towels or denim that could increase abrasion and lead to pilling. Dry in on low heat or hang to dry in a well ventilated room.
Why is Bamboo a fabric great for kids with eczema and allergies?
Bamboo is like a superhero fabric for kids with eczema/allergies! It’s naturally hypoallergenic and anti-bacterial so it’s gentle on sensitive skin. Bamboo is also like nature’s temperature control - it’s fantastic at letting air through, preventing overheating and sweating. As we know, eczema doesn’t get along with moisture.
What TOG should I get?
- 0.5 TOG: This is the lightest option suitable for warm summer months or when the room temperature exceeds 24°C (75°F). It provides minimal insulation and is ideal for ensuring your baby doesn't overheat.
- 1.0 TOG: A versatile option that works well year-round, or for rooms with a stable temperature around 20°C (68°F). It provides a moderate level of warmth and can be paired with appropriate clothing layers.
- 2.5 TOG: The warmest TOG rating, recommended for standard room temperatures between 16°C and 20°C (61°F-68°F). It offers more warmth and is suitable for colder winter months or cooler nurseries. This can also be a good option for summer camping trips, when evening temperatures drop.
Where is Belan.J produced?
They are ethically made in China. Our manufacturing partners are a small family-owned business - just like us! They have a keen focus on quality control and detailed attention to materials. With a fair treatment of employees, safe and healthy working conditions and environmentally sustainable production process, they have created a positive impact in their local community.
How can I prevent pilling?
Pilling is a common problem with bamboo clothes, but there are steps you can take to prevent it. Here are some tips to help you keep your bamboo clothes from pilling:
Wash them inside out- Washing your bamboo clothes inside out can help prevent pilling.
Use a gentle detergent- Use a mild detergent that is free of bleach and fabric softeners. This will help preserve the bamboo fibers and keep your clothes soft.
Avoid the dryer- Hang or lay flat to dry, as bamboo fabric can shrink in the dryer. If you must use the dryer, use a low heat setting.
Brush them- Gently brushing your bamboo clothes with a soft-bristled brush can help remove any pilling that has occurred
What is GSM?
Understanding GSM (Grams per Square Meter) is essential for bamboo children's clothing, as a higher GSM offers several advantages:
- Durability: Higher GSM means denser fabric, enhancing durability for active kids.
- Warmth: Thicker bamboo with higher GSM provides better insulation for comfort in cold weather.
- Opacity: Higher GSM fabric offers better coverage and privacy, ideal for diapers or training pants.
- Softness: Higher GSM bamboo often feels even softer, adding to children's comfort.
- Absorbency: It typically offers superior moisture absorption, essential for baby clothing.
- Visual Appearance: Higher GSM fabric appears more substantial and luxurious, ideal for quality and style.
Investing in higher GSM bamboo clothing can provide durability, warmth, comfort, and style for your child.
What should I avoid when washing bamboo clothes?
To maintain the quality of bamboo baby clothes, avoid:
- Harsh detergents, use baby-safe ones.
- Fabric softeners, as bamboo is naturally soft.
- Bleach, which can weaken and discolor the fabric.
- Hot water, as it can shrink and damage bamboo.
- Overloading the washing machine.
- Aggressive washing cycles; use gentle settings.
- Long soaking, which weakens fibers.
- Excessive sunlight during drying.
- Wire hangers, which can stretch the fabric.
- Skipping care instructions; follow garment labels for specific care.