Woolino sleep bags are the ultimate in both, quality and function; they are designed to make sure your baby is always 100% comfortable, which means a good night's sleep for your baby & you.

And, we all know what a good night's sleep means: a healthier, happier family!

award-winning baby sleep bag, get better and longer sleep

Trusted

Certifications

Made with Woolmark, Oeko-Tex 100, and RWS (Responsible Wool Standard) certified merino wool; GOTS and Oeko-Tex 100 certified organic cotton; Oeko-Tex 100 certified (tested for 100 harmful substances), nickel, lead, and phthalates free YKK snaps and zippers.

Lea W.

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Image showcasing underarm snaps on the Woolino Ultimate Baby Sleep Bag, to adjust fit for smaller babies. Universal size fits from 2 months to 2 years.
Woolino Ultimate Sleep Bag infographic showcasing all its best features, including double shoulder snaps, underarm snaps, seat belt slot, two-way zipper, and room thermometer tag with dressing guide.
Photo showcasing the inside merino wool lining, and organic cotton layer, of a Woolino 4-Season sleep bag. It's machine washable!
Buy now, pay later, with Sezzle. Get what you want now and pay for it later with 4 easy interest-free payments.
So many cute Woolino sleep bag patterns to choose from! Shop the Woolino baby sleep bag collection.
Mom dressing baby in Woolino sleep bag. Here's what parents have to say...
Baby sleeping on back in crib wearing a Night Sky print Woolino 4-Season Ultimate Baby Sleep Bag

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"Absolutely love this. Wish I could give 10 stars. The only sleep sack we use now, baby stays the perfect temp, not too hot or cold and the temperature varies here in New York during fall, winter and spring. Worth every penny." -Phannyon

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Baby sleeping on back in crib wearing a Rainbow print Woolino 4-Season Ultimate Baby Sleep Bag

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"Believe the hype. Game changer for my one-year-old sleeping through the night... I'd pay double for the magic this bag works." -Michael J.

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Baby sleeping on back in crib wearing a dark gray Woolino 4-Season Ultimate Baby Sleep Bag in Stars print

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"Can't say enough good things about the Woolino. It's a life changer. She instantly started sleeping through the night. The baby is nice and cozy in it, super soft and never scratchy, and just try to get her to sleep the night without it. You'll want two." -Dan K.

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