Description
Product Overview
Experience premium comfort with the Woolino baby sleep sack, crafted from 100% merino wool lining and 100% organic cotton outer. This transitional-style sleepwear features a universal size accommodating infants from 2 months to 2 years, with dimensions of 12.62 x 10.37 x 2.2 inches and a lightweight 1.34-pound design. The breathable, temperature-regulating materials ensure optimal comfort, while machine-washable care simplifies maintenance. Backed by Woolino’s industry-leading warranty and trusted US customer service, this sleep sack has earned accolades including the 2021 Cribsie Award and Mom’s Choice Award.

Usage
Ideal for daily use in cribs, strollers, and bouncers, this unisex sleep sack supports babies through all seasons thanks to its temperature-regulating properties. The under-arm snaps and two-way zipper system facilitate easy dressing and diaper changes, while closable seat-belt slots allow seamless transitions between activities. Parents can rely on it for consistent comfort during naps and overnight sleep, helping reduce sleepless nights for the entire family.
Why Choose Us
Woolino stands out as the #1 rated and selling merino wool baby sleep sack in the US and Canada since 2010, recognized with Creative Child’s 2018 Top Choice of the Year Award. Our commitment to premium fabrics includes GOTS-certified materials and Australian merino wool, ensuring natural softness and durability. With a focus on customer satisfaction, we provide reliable US-based support and a comprehensive warranty, making us the trusted choice for baby essentials.
Key Features
- Temperature-regulating merino wool lining for year-round comfort
- Universal size fits from 2 months to 2 years, eliminating frequent replacements
- Easy diaper changes with double shoulder snaps and two-way zipper
- Breathable organic cotton outer for enhanced airflow and softness
- Versatile design with under-arm snaps and seat-belt slots for multi-use scenarios
FAQ
What age range does this sleep sack fit?
The universal size is designed to accommodate babies from 2 months up to 2 years, providing long-lasting use as your child grows.
How do I clean the sleep sack?
It is machine washable for easy care; follow the included instructions to maintain the integrity of the merino wool and organic cotton materials.
Can it be used in warm weather?
Yes, the merino wool lining naturally regulates body temperature, making it suitable for both cool and warm seasons without overheating.
Is it safe for overnight sleep?
Absolutely, the breathable design and secure fit promote safe, comfortable sleep, aligning with recommended practices for infant sleepwear.
What makes Woolino different from other sleep sacks?
Woolino uses premium Australian merino wool and organic cotton, backed by awards and a proven track record since 2010, ensuring unmatched quality and customer trust.





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