woolino schlafsack Woolino Merino Wool 4 Season Sleep Bag ULTIMATE
SKU: 4189557836
woolino schlafsack

woolino schlafsack Woolino Merino Wool 4 Season Sleep Bag ULTIMATE

Sale price$25.48 Regular price$28.31
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Ships within 48 hours · Estimated delivery Jun 29 - Jul 4

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For Your Every Summer RSVP, with Code: SUMMER15

Description

woolino schlafsack Woolino Merino Wool 4 Season Sleep Bag ULTIMATEPREMIUM 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 theres no need to worry about which weight sleeping sack to use, or whether your baby will be too hot or cold while sleeping theyll 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 its

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. Cuddly-soft organic cotton outer adds to the comfort as it's perfect for the most delicate skin.

THE ONLY SLEEP BAG YOU NEED - It comes in a universal size that fits babies from 2 months to 2 years. So, instead of buying a different sleeping bag for different seasons, as well as buying larger ones as they grow, you just need one Woolino sleep bag for your baby, right up until they turn two!

 

  • 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.
  • 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.

 

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.

 

  • Certifications 

    Woolino Sleep Sacks are fully OEKO-TEX® STANDARD 100 certified (23.HUS.59156, Hohenstein HTTI) - tested and proved free of 100 harmful substances;

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

    GOTS certified organic cotton.

                 

                         

  • 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.

                         

            

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4189557836

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4.7 ★★★★★
Based on 2425 reviews
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E
Verified Purchase
Elizabeth
Omaha, US
★★★★★ 5
Puppy loves it!
Size: 6 Inch, Color: Bone
I have a very energetic lab puppy - this chew kept her still for longer than any other toy I’ve tried (besides bully sticks and peanut butter). Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
L
Verified Purchase
Lisa Jones
Alexandria, US
★★★★★ 5
Good for an aggressive chewer
Size: 6 Inch, Color: Bone
My dog loves it. These last a long time. My dog is a Rottweiler/American Bulldog mix, she goes through a lot of toys. So, I try to buy her something that has no stuffing, but will keep her from getting bored. This one has lasted about 6-7 months, the leather is chewed off, but it's still the shape of a bone. I did just order another though, the one she has is a little stinky from her slobber. :-)
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Reviewed in the United States on April 11, 2026
K
Verified Purchase
Karen K.
Massapequa, US
★★★★★ 3
Not as expected
Size: 6 Inch, Color: Bone
I have been looking for these ever since we got a similar one at Sierras for our 1 1/2 yo Cane Corso. She is brutal on chew toys and the first one from the box store held up well. However, this did not hold up as well and she was done with it in less than a week. Still looking for that perfect toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
J
Verified Purchase
Jackie
Grantham, US
★★★★★ 5
More durable than expected.
Size: 5 Inch, Color: Raccoon
I was walking through my front room the other day when I noticed a suspicious spot on the floor. It looked like something I should not touch without gloves. As I got closer, I realized what it was. It’s the ‘guts’ from this toy. My dogs (Pit Bull and German Shorthaired Pointer) were each given one. Both are aggressive chewers with their toys. They ATE the faces off these toys and now play with the felt interior. I’m still trying to figure out how they ate through leather while the felt remained intact. Regardless, they still play with them. Now they are basically semi-fuzzy throw toys we can throw in the house because they don’t leave marks on the wall if our aim is off. Sometimes things work out the way they should. :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
Z
Verified Purchase
ZC
Lexington, US
★★★★★ 4
Great with supervision
Size: 6 Inch, Color: Bone
My dogs LOVE these, but removing a star because these apparently are VERY delicious and they will ingest what they rip off if I don’t supervise; also removing a star for how quick they’re able to tear these up. These are like catnip for dogs, I’ll still buy them!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 13, 2025

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