Provide your little one with the ultimate in safe, sustainable warmth with our Organic Cotton Baby Sleep Sack. Specifically designed as a winter infant sleeping bag, this wearable blanket is ideal for nursery temperatures between 8-15°C (46.4 to 57.2°F). By replacing loose blankets with a TOG-rated baby sleeping bag, you ensure your baby stays cozy and safe throughout the night without the risk of kicking off their covers.
Crafted from 100% certified organic cotton, these sleep sacks feature our signature nature-colored fibers—grown without a single drop of synthetic dye. The breathable, chemical-free fabric is eczema-friendly and perfect for protecting delicate newborn skin. With a modern hoodie design and a convenient bottom-up zipper, diaper changes are effortless even during the coldest winter nights.
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Explore the Nursery: Discover our full range of Organic Baby Toys & Rattles to find the perfect naptime companion.
- Complete the Set: View our entire Organic Baby Sleeping Bag Collection.
What temperature is this winter sleep sack best for?
Our Organic Winter Sleeping Bag is specifically weighted for cooler environments, ideally between 8-15°C (46.4 to 57.2°F). Its breathable organic cotton layers provide deep warmth while preventing overheating.
Is this sleep sack safe for babies with eczema or sensitive skin?
Absolutely. Because we use nature-colored cotton that is certified organic nature colored cotton and free from chemical dyes, formaldehydes, and bleaches, it is the most recommended fabric for babies with skin sensitivities and eczema.
How should I wash my organic cotton sleep sack?
To maintain the organic purity and ultra-soft feel, we recommend hand washing and drying flat. If you use a machine, select a gentle cycle and always use a laundry mesh bag. Avoid bleach to protect the natural fibers.