Woolino Big Kid Sleeping Bag - 4-Season Merino Wool & Organic Cotton Wearable Blanket (Ages 4-6, Space Glow)

A Sleep Sack for All Seasons

Meet the Woolino Big Kid Sleeping Bag, a 4-season wearable blanket designed for children aged 4–6. Crafted with a silky-soft Australian merino wool lining and a GOTS-certified organic cotton outer, this universal size aims to simplify bedtime by staying comfortably cozy across year-round temperatures. The Space color option adds a playful glow-in-the-dark touch that can make bedtime routines feel a little easier without sacrificing comfort.

• Breathable merino wool lining helps manage warmth for year-round comfort.
• GOTS-certified organic cotton outer offers softness and durability.
• Machine washable for busy households without compromising fabric integrity.

Thoughtful Design, Easy to Use

Designed with both kids and parents in mind, this sleep sack features shoulder snaps and a full-length two-way zipper for easy in-and-out. A zipper-pull guard protects delicate skin and helps prevent chewing, while the generous 4–6 year size reduces the need for multiple garments or TOGs.

• Shoulder snaps and two-way side zipper simplify dressing and nighttime diaper changes.
• Zipper-pull guards protect skin and deter chewing during sleep.
• One universal size covers 4–6 years, offering continued use as your child grows.

Safety, Quality, and Care You Can Trust

Woolino partners with trusted textile standards to give families peace of mind. The sleep sack carries the OEKO-TEX STANDARD 100 label and uses merino wool (Woolmark certified) with a GOTS outer; this combination emphasizes safety and durability from yarn to finished product. The brand also stands behind its products with an industry-leading warranty, reflecting confidence in long-term wear.

• OEKO-TEX STANDARD 100 certified for substances safety.
• Woolmark certified merino wool lining for quality fiber performance.
• GOTS organic cotton outer supports natural materials and sustainable production.
• US-based Woolino offers responsive support and a strong warranty.

Real-Life Comfort and Everyday Use

Think of cozy nights at home, sleepovers, or hotel stays where room temperatures can vary. The merino’s natural temperature regulation—keeping warmth in when it’s cool and releasing excess heat when it’s warm—helps your child feel steady through the night. The space-themed glow-in-the-dark option adds a touch of bedtime ritual without promising results, inviting a calm, predictable routine that kids may enjoy.

Care, Fit, and Availability

With a universal size for ages 4–6, you may find less need for buying multiple sizes or TOGs. The sleep sack is machine washable, making it practical for busy families. If you need alternatives, Woolino also offers sizes for younger children (2–24 months, 2–4 years) to fit your growing family.