4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon
4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon

4 Season® Ultimate Baby Sleep Bag, Merino Wool & Organic Cotton, Hot Air Balloon

Regular price$109.00
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PREMIUM FABRICS FOR BEST COMFORT - The award-winning 4 Season® Ultimate Baby Sleep Bag keeps your baby at a perfect temperature throughout the night, year-round. That means there’s no need to worry about which weight sleeping sack to use, or whether your baby will be too hot or cold while sleeping – they’ll always be just right!

SAFER, BETTER, AND LONGER SLEEP - Made with super-fine and supremely breathable merino wool, it helps keep your baby warm when it’s cold and cool when it’s warm. That temperature regulation means that your baby will sleep comfortably throughout the night– and that means a better night's sleep for you too. The cuddly-soft organic cotton outer adds to the comfort as it's perfect for the most delicate skin.

THE ONLY SLEEP BAG YOU NEED – With a universal size that fits babies from 2 months to 2 years, there is no need to worry about buying different sleeping bags as your little one grows or as the seasons change. You only need one Woolino sleep bag, right up until your baby turns two! And for toddlers, we’ve got you covered too, with a size for ages 2-4 years.

  • Premium natural fabrics
    Silky-soft hypoallergenic merino wool lining and the finest organic cotton outer.
  • 4 Season use 
    Unlike other brand sleep sacks that come in either winter or summer weight/TOG rating, the Woolino 4 Season Sleep Bag can be used year-round. It’s suitable for room temperature 63-75F (17-24C). Because of merino’s unique ability to regulate body temperature, it helps keep your baby warm when it's cold and cool when it's hot.
  • Grows with your baby 
    It has a universal size so it can be used for babies 2 months up to 2 years old. For smaller babies, simply close the underarm snaps to adjust the fit. Toddler size fits from 2 - 4 years.
  • Excellent value 
    You don’t have to buy a different sleep bag every few months. Woolino Ultimate 4-Season Sleep Bag is the only baby sleep bag your baby needs, in winter or summer, until they turn two years old.
  • Designed to be practical 
    It features double shoulder snaps and a two-way side zipper, so it opens up completely flat for easy dressing without waking the baby. For easy nighttime diaper changes, you can open the bottom only. Zipper-pull guards protect baby's skin and discourage baby from chewing on the zipper pull.
  • Travel friendly 
    A closable seatbelt opening allows for easy transfer between stroller, car seat, and crib, so you can keep your baby’s sleep routine intact while on the go.
  • A safer alternative to loose blankets
    Helps your baby stay covered through the night, replaces loose blankets in the crib, and promotes back sleeping.
  • Free Nursery Thermometer with a dressing guide included (baby size only).

    Free shipping in the USA (Expected Delivery: 3-6 Business Days) on orders of $49 USD or more.

    Express international shipping (Expected Delivery: 2-5 business days) starting at $14.99 USD.

    NEW: Easy returns within 60 days* of purchase.

    Additional information about our shipping policy can be found here.

    Machine wash on low (100°F max), use wool or mild detergent. Close zipper. Can be tumble dried on No Heat or Air Dry setting. Hang to dry whenever possible. To refresh and reduce washing, turn garment inside-out and air often.

    We do not recommend sizing up. The sleep bag should be well-fitted around your child's upper body for a safe and secure fit. We suggest using our recommended sizing guidelines to find the correct size based on your child's age, height, and weight. Your baby should not be below the minimum recommended weight.

    size chart for Woolino Ultimate, Woolino Basic, and Woolino Sleep Bags with Feet

    • Certifications 

      Setting the standard for textile safety, from yarn to finished product, Woolino sleep sacks bearing the OEKO-TEX® STANDARD 100 label (23.HUS.59156, Hohenstein HTTI) have passed safety tests for the presence of harmful substances.

      Woolmark® and RWS certified merino wool (Responsible Wool Standard - cruelty-free, mulesing-free wool); 

      GOTS certified organic cotton.

                     

                Woolino_Responsible Wool Standard Certified_Logo             

    • Awards 
      #1 rated and #1 selling merino wool baby sleep bag in US and Canada and winner of 2021 Cribsie Award, Creative Child and Baby Maternity's 2012 & 2018 Top Choice of the Year Award, 2017 Eco Excellence Award, 2016 Green Scene Mom Award, and Mom's Choice Award.

                             

                

    • What is a baby sleep bag or sack?

      A baby sleep bag, also called a wearable blanket or sleep sack, is a bag-like garment or covering worn by infants for sleeping. It replacing loose blankets in the crib that can cover your baby's face and interfere with breathing.  

      Since 2005, The American Academy of Pediatrics has recommended the use of wearable blankets for safe sleep. Unlike regular blankets, a wearable blanket or sleep sack is worn over your child's sleepwear, so it won't be kicked off and baby stays covered all night. The sleep bag will become part of your child's bedtime routine, providing a sense of security and comfort.

    •  What is the TOG rating of your sleep bags? Are they winter or summer weight?


      Our 4 Season baby sleeping bags are designed to be worn year round. They are made from 100% natural breathable fibers and contain NO synthetic filling. Therefore, they do not have a fixed TOG. The fine merino wool lining helps naturally in regulating baby’s body temperature, keeping baby warm in winter and cool in summer.

      Woolino sleep bags are recommended to be used in room temperatures 63-75F (17-24C). Simply adjust the layers of sleepwear worn under the sleeping bag to suit the nursery temperature. You can find our suggested dressing guidelines on the back of the room thermometer that comes with every baby sleep bag.

    • What is the difference between Woolino Ultimate (universal size) and Woolino Basic Baby Sleep Bags?


      Both collections have same weight fabrics, merino wool lining and organic cotton outer. The differences are:

      Woolino 4 Season Ultimate Baby Sleep Bag has universal sizing: 2m-2yr, underarm snaps for adjusting the size of the armholes, travel slots for use in car seats, strollers, bouncers etc., & both shoulder snaps.

      Woolino 4 Season Basic Sleep Bag has simpler design: no snaps and no travel slots; it comes in traditional sizes: 0-6, 6-18, 18-36 months.

    • Woolino sleep bags sizing chart?

      We do not recommend sizing up. The sleep bag should be well-fitted around your child's upper body for a safe and secure fit. We suggest using our recommended sizing guidelines to find the correct size based on your child's age, height, and weight.

    • When can my baby start using Woolino Ultimate Baby Sleep Bags in size 2m-2yr? How long will my baby fit in this Woolino sleeping bag?

      Woolino Ultimate Baby Sleep Bags provide an excellent value as they are designed to fit an average size baby from about 2 months up to 2 years of age. You may start using your sleeping bag when you feel your baby is too big to be swaddled and is breaking out of it. Please use the under-arms snaps to adjust the fit for smaller babies. Our minimum recommended weight is 10lb. or 4.5 kg.

    • When should I use the under-arm adjustment system?

      In general, you need to use the under-arm snaps for babies up to 6 months old. However, this depends on baby’s size, so for smaller babies you may have to use them longer. Please keep in mind that the underarm snaps are to be used for safety reasons, so that the sleep bag fits snugly around baby’s upper body and doesn’t climb up baby’s face.

    • Do I need more than one Woolino sleeping bag?

      Yes, we recommend having two Woolino baby sleeping bags. It is always useful to have a spare sleep bag when one is being washed, to keep at grandparents' place or if baby requires a quick change in the middle of the night. Please enter code BOGO20 at checkout to receive our buy one item, get one item 20% off promotion. This promotion cannot be combined with any other offer.

    • Won’t wool itch my baby’s skin?

      Absolutely not. We use only superfine merino wool, which unlike the traditional wool, feels like silk against baby’s delicate skin. In fact, because of its softness and unique breathability, it is perfect for helping treating conditions such as heat rash and eczema.

    • Isn’t merino wool too hot for warm temperatures/climates?

      Our merino wool baby sleeping bags are perfect for year-round wear in nurseries with room temperatures 63-77F (17-25C). Simply adjust the layers of underwear or sleepwear worn beneath the sack to suit the room temperature. Merino creates a micro-climate around your baby’s body, gaining or losing heat as required to produce warmth in cool conditions and enhance cooling effects in warm conditions.

    • What should my baby wear when sleeping in a Woolino 4 Season Sleep Bag?

      We recommend sleepwear made of natural and breathable fabrics like cotton or merino wool. Please refer to the dressing guide we provide (also on back of your Woolino room thermometer) as general recommendations on how to dress your baby depending on the room temperature. Woolino pajamas are ideal for layering or to wear inside a Woolino sleep bag. The temperature in most rooms will rise and fall throughout the night, and the merino fiber has the remarkable ability to regulate your baby's body temperature.

    • How do I know if my child is hot or cold?

      Please check if your baby is hot or cold while sleeping by touching her tummy or behind her neck. Touching baby’s hands and feet are not good indications of their actual body temperature.

    • Why don’t the sleeping bags have sleeves? Won’t my child get cold?

      Our baby sleeping bags are sleeveless to ensure air circulation around baby’s chest. Babies that sleep with traditional sheets and blankets rarely sleep with their arms underneath the blankets. We recommend layering under-garments to ensure your child is perfectly comfortable in their sleeping environment. It is normal for babies to have cold hands and feet due to their still-developing circulation systems and it is not an indication that they are cold. Checking behind baby’s neck or his/her tummy will give you better indication of baby’s body temperature.

    • Does the sleep bag need to be washed before the first use?

      It is not required to wash your Woolino sleep bag before wearing. When you wash it, please follow the care instructions carefully.

      • Why does wool smell when it gets wet?

        There is an odor associated with wet wool, sometimes described as a "wet dog", "burned", or "perm" smell. This particular smell of wet wool is present because we use natural merino wool that has been minimally processed in order to preserve the lanolin content inside the wool.

        Lanolin is naturally present in merino wool and is responsible for giving wool all of the great properties that we love: wicks away sweat, resists stains, feels soft to the touch, stays elastic, and resists bacteria and odors. Wool is a natural product. Even if you have multiple products, one may have a higher lanolin content than the other, accounting for a difference in smell.

        You should not notice this smell at all when the product is completely dry. Over time, the smell will be less and less noticeable after washing as the lanolin content in the wool dissipates.

      • How should I care for my Woolino sleep bag?

        Merino wool by nature is self-cleaning and does not need to be washed as frequently as other fabrics. To refresh and reduce washing, air the garment often.

        • Machine wash: Close zipper. Wash on Low, 100°F /40°C max
        • Use wool or mild detergent.
        • Line-dry clothing and blankets. Sleep bags can be tumble dried on No Heat or Air Dry settings.
      • How to remove stains from wool?

        Stains should be treated immediately. Do not apply any form of heat, as this tends to fix most stains making them more difficult to remove. 
        Rinse the stain immediately and thoroughly in cold water. Then, apply one of these two homemade stain remover mixtures that we recommend:

      1. The preferred option is a mixture of liquid laundry detergent and a few drops of white vinegar. Cover the stain with the mixture and allow the liquid to sit on the stain for at least an hour. Blot the stained area gently with a cloth before rinsing thoroughly with clean water. Repeat if necessary. 
      2. Another option is a mixture of one part (1 Tsp) dish soap and two parts (2 Tsp) Hydrogen Peroxide (3%). Apply some of the mixture over the stain and let it sit for several hours. Wash afterwards as usual.

        When ready to wash, check the product care tag for best results. Following our recommended care instructions will ensure the best possible wear while maintaining & prolonging the life of your Woolino.

        Here's a link to The Best Ways to Remove Stains from Your Wool Clothes provided by Woolmark. It contains a comprehensive list of different types of stains and a step-by-step guide for removal:
        https://www.woolmark.com/care/stain-removal-wool/
        Please Contact Us and we'll answer your question promptly.

        Best Comfort for Better Sleep

        A study done by the University of Sydney has found that a better night's sleep is achieved when sleeping in wool.

        Fine merino wool is the perfect fiber to have next to your child's sensitive skin. It's cuddly soft and uniquely temperature regulating - creates a perfect micro-climate for safer and longer sleep.

        Grows With Your Baby

        Designed as a universal size, it fits babies from 2 months to 2 years (toddler size fits from 2 - 4 years). For smaller babies, simply close the underarm snaps to adjust the fit. No need to buy a new size sleep sack every few months!