10 Best sleep sack for 6 month old (2025)

• Premium 100% Cotton: Soft, breathable, and gentle on sensitive skin, our sleep sack is made from high-quality cotton. Certified by the Consumer Product Safety Commission (CPSC), we prioritize your baby’s comfort and safety.
• Sleeveless Design: Sleeveless offers for greater flexibility and comfort, better regulates baby's temperature. 0.5 Tog is ideal for spring, summer, autumn or taking a nap in air-conditioned rooms, providing year-round comfort for baby.
• Convenient 2-Way Zipper: Diaper changes are a breeze with our durable, top-grade double zipper. The zipper design protects your baby’s skin from scratches, while the smooth glide ensures hassle-free use day and night.
• Safe & Snug Design: The tailored neck opening provides a secure fit, and the wide hem allows free movement while keeping your baby warm. This thoughtful design nurtures healthy hip development and ensures uninterrupted sleep.
• Easy Care and Multiple Sizes: Available in 4 sizes for babies 0-24 months (S, M, L, XL). Machine washable for easy maintenance, these sleep sacks retain their softness and durability wash after wash.

• 🏆 #1 SLEEPSACK - Award-winning, easy-to-use wearable blanket for safe sleep
• 🌱 SUPER SOFT - 95% viscose from bamboo / 5% elastane interior and exterior with 100% polyfill, hypoallergenic & breathable
• ✌️ 2-WAY ZIPPER - For easier changes. Zipper cover at neckline prevents scratches. Hip healthy design.
• 😴 BETTER, SAFER SLEEP - Designed to help comfort baby and reduce startle reflex, so they sleep better with less wakeups.
• 😀 1.5 TOG, ideal for all seasons, wear over pajamas. Machine washable

• Premium 100% Cotton: Soft, breathable, and gentle on sensitive skin, our sleep sack is made from high-quality cotton. Certified by the Consumer Product Safety Commission (CPSC), we prioritize your baby’s comfort and safety.
• Long Sleeves with Adjustable Mitten Cuffs: Keep your baby cozy in cool temperatures with long sleeves and foldable mitten cuffs. Ideal for air-conditioned rooms, chilly nights, and seasonal transitions, this feature ensures your little one’s hands stay warm.
• Convenient 2-Way Zipper: Diaper changes are a breeze with our durable, top-grade double zipper. The zipper design protects your baby’s skin from scratches, while the smooth glide ensures hassle-free use day and night.
• Safe & Snug Design: The tailored neck opening provides a secure fit, and the wide hem allows free movement while keeping your baby warm. This thoughtful design nurtures healthy hip development and ensures uninterrupted sleep.
• Easy Care and Multiple Sizes: Available in 4 sizes for babies 0-24 months (S, M, L, XL). Machine washable for easy maintenance, these sleep sacks retain their softness and durability wash after wash.

• Warm 2.5 Tog: Made of 100% cotton fabric and fluffy polyester filling, our winter sleep sack is super soft and skin-friendly to baby's delicate skin. 2.5 TOG sleep sacks are suitable for cold winter and room temperatures from 61℉ - 68℉, keeping your little one warm and comfortable.
• Safety and Cozy: Unnivoll baby sleep sack has been certified to meet Consumer Product Safety Commission(CPSC), dedicating to ensure your baby's safety. Large bottom space allows infants to move freely but not kick off. Well-fitted neckline and sleeveless design provides more flexibility and snugness.
• Quilted Design for Durability: Unique quilted stitching ensures even distribution of fillers, sleep sack will not lump or shift. With preshrinking process, our sleeping bag has a shrinkage rate of less than 2% after being washed by machine and low-temperature drying(below 30℃/86℉), making this newborn sleep sack more durable and practical for daily use.
• Smooth 2-way Zipper: Double zipper allows for easy dressing and convenient diaper changing without disturbing baby while sleeping. Top-quality zippers are smooth and will not get stuck even after being used many times. Zipper guard of sleep sack can protect the baby's jaw from scratches.
• Essential Baby Item: Our sleep sacks with four sizes for choose; S(0-6 months/10-18 pounds), M(6-12 months/16-24 pounds), L(12-18 months/22-28 pounds), XL(18-24 months/26-34 pounds). As a must-have for parents, baby wearable blanket is suitable for both boys and girls!

This Yoofoss Baby Sleep Sack 6-12 Months 0.5 Tog Wearable Blanket for Baby, 3 Pack 100% Cotton Infant Toddler Sleeping Sack 2-Way Zipper Lightweight Sleep Sack is a top choice in . Customers appreciate its quality, performance, and value.

• Luxuriously Soft: Crafted from premium 100% cotton, our baby sleep sacks offer unparalleled comfort and breathability. The sleeveless design and optimal TOG rating of 0.5 ensure your baby stays warm and snug without the risk of overheating
• Convenient & User-Friendly: Featuring a double zipper for easy diaper changes, our sleep sacks are designed with baby's safety in mind. With zipper guards and covers, they provide added protection for your little one's delicate skin. Plus, they are a breeze to care for with machine wash and tumble dry capabilities
• Enhanced Safety Design: Carefully crafted arm and neck openings ensure a perfect fit, while ample leg room allows for freedom of movement without the risk of kicking off the sack. This promotes a secure and cozy sleep environment while supporting healthy hip development
• Value-Packed 3-Pack: Each set includes three adorable sleep sacks in versatile gender-neutral colors, making them ideal for gifting at baby showers or adding to a registry. Always have a clean sleep sack on hand for your little one's bedtime routine
• Must-Have Baby Essential: Our sleep sacks are a staple for everyday use. Available in four sizes (S-XL), catering to babies from 0-24 months. Invest in quality sleepwear for your baby's comfort and well-being

• 100% Cotton: Made from 100% cotton, our baby sleep sack applys top 10% of the premium cotton, which is more breathable and soft on delicate skin. 0.5 tog fit for moderate seasons. With this wearable blanket, your baby would neither get sweaty nor catch a cold.
• Sustainable Double Zipper: We apply a two-way zipper on the sleep sack for a more convenient use for changing diapers. Since a good zipper for the sleepsack is as important as a proper lid for the themal mug. We equip the sleep sack with high quality zipper, which is smooth even after tens of thousands of uses.
• Four Sizes: Dedicating to its four sizes, this sleep sack is available for baby 0-3 months or 3-6 months (10-18 pounds), 6-12 months (16-24 pounds), 12-18 months (22-28 pounds), 18-24 months (26-34 pounds). The complete sizes would company your baby's growth. You do not need to worry about the wrong size for your baby. 3 pack for each suit makes it easy to change wearable blanket for baby at any time. You could use different color in different occasions for your baby.
• Designed for Safety: Concerning for the safety and comfort for babies, we had soften the edge of neck and arm of the baby sleep sack. You could see the extra protector on the collar and soft edge on the arm of the blanket. So that the edge would not cause any discomfort to your baby.
• Enough Kicking Room: The spacious interior plays a positive part in infant hip development. When your baby has more space for kicking, he/she could have a better sleep and a more enjoyable time with it. Our wearable blanket is machine washable, and we had reduce the shrinkage rate into an very low degree. It's not necessary to worry about the blanket will shrink or become wrinkled after washing.

• Get the Best Fit for More Restful Sleep: To ensure a snug fit, we recommend sizing down in our transition swaddles if your little one is in between sizes. Sleeping Baby swaddles should have slight resistance when your baby lifts their arms
• Unique Starfish Design: The Zipadee-Zip transition swaddle features a distinctive starfish design that mimics the womb, ensuring your baby feels cozy and secure. Its ergonomic shape promotes better sleep by recreating the snug and comforting sensation of the womb, helping your baby feel more at ease
• Easy Diaper Changes: Featuring a convenient zipper which allows for quick and easy diaper changes, our zip-up swaddle makes nighttime routines smoother and less disruptive for both you and your baby
• Supports Proper Hip Development: The roomy design of our baby transition swaddle provides ample space for your baby's legs to move freely and naturally. By allowing unrestricted leg movement, this design supports the healthy growth of your baby's hips and ensures comfortable, safe sleep
• Encourages Longer Sleep: Suppressing the Moro startle reflex, our baby sleep suit helps transition your baby into arms-up sleeping, reducing interruptions and wake-ups for a longer, more restful sleep. The gentle pressure soothes your baby and keeps them from startling awake

• The TRANSITIONAL SWADDLE SACK allows baby to SELF-SOOTHE and promotes BETTER SLEEP and SAFER SLEEP. Perfect for babies who prefer to sleep with ARMS UP, babies who are starting to rollover, and babies able to break out of a traditional swaddle
• LITTLE SLEEVES with BIG PURPOSE. Arms Up Swaddle with 1/2-length sleeves and mitten cuffs closed provide partial suppression of Startle Reflex to help baby SLEEP BETTER; if baby rolls onto tummy, baby can push up to access air for SAFER SLEEP
• EASIEST way to move from a traditional swaddle to a wearable blanket. Transitional Swaddle Sack is not a tight swaddle nor a loose sack. Snug fitting and Hip Healthy design supports baby in natural position and flexed position to help baby feel secure
• FOLDOVER MITTEN CUFFS MAY BE WORN OPEN OR CLOSED; Caregiver can open one or both cuffs, so baby can SELF-SOOTHE, or close the cuffs to PROTECT BABY FROM FACIAL SCRATCHES and provide partial suppression of startle reflex.
• 100% Cotton. TOG 0.7 Soft stretchy cotton knit. 2-way zipper for easy diaper changes. Use baby weight to select size: Small 6-14 lbs 0-3 Mo; Medium 14-21 lbs 3-6 Mo; Large 21-24 lbs 6-9 Mo. Machine wash. Tumble dry. US Patent 11,812,795 WW patents online

• SAFETY COMES FIRST-Made from high-quality cotton and superior zipper, Unnivoll baby sleep sack is certified to meet Consumer Product Safety Commission (CPSC) guidelines, eliminate all potential risks and provide a safe sleeping environment for your little one.
• UPGRADED PROCESS-Compared with ordinary one, our 100% combed cotton sleep sack brings 30% optimization in both comfort and breathability. Pre-washing technology effectively reduces the shrinkage rate by 50%, which ensures the baby sleeping bag can be machine washed and dried at low temperatures without distorting. We care not only for babies, but also for busy parents!
• EASY DIAPERING-2 way zipper runs from the top to the bottom, making the lightweight sleep sack much convenient to change diapers without any interruption, especially during midnight. Equipped with zippe guard prevent rubbing on your baby's sensitive skin and protects baby's chin. Tog rating 0.5, making it perfect for nursery room temperature 75°F above.
• UNIQUE PATTERN-The 3 pack summer sleep sack printed with sky elements such as rainbow, star and planet, which can promote baby's brain and visual development. Multiple studies have shown that green, blue, and pink can relax and help babies fall asleep faster. We always design on the perspective of yours!
• ACCOMPANY BABY'S GROWTH-Four size options available for your choice, fits baby 0-6 months, 6-12 months, 12-18 months, 18-24 months. Unnivoll sleep sack is essential for everyday use, keep your baby cozy and sleeping peacefully!