Woolino 4 Season Baby Sleep Sack with Feet – Merino Wool & Organic Cotton, 6-18m, Space Glow

Overview

Meet the Woolino 4 Season Baby Sleep Sack with feet, a thoughtfully engineered sleep solution crafted from premium fibers. The lining uses 100% Australian merino wool for a soft, breathable touch, while the outer layer is 100% GOTS-certified organic cotton—together delivering gentle comfort and everyday durability. The space-themed glow-in-the-dark accents add a friendly visual cue for nighttime routines without compromising sleep ambiance.

All-season comfort at a glance

• Temperature regulation helps babies feel snug in a variety of rooms and climates.
• Footed design accommodates growing feet while staying cozy.
• Can replace loose blankets for a safer sleep setup across seasons.

All-season design benefits

Gentle temperature regulation supports year-round comfort. The roomy cut invites feet inside the sack for sleep, while still allowing space to move during awake moments. For a closer fit, sizing down is encouraged. Use over regular sleepwear to replace loose blankets, creating a simplified, cohesive sleep environment.

Key design features

• Foot openings allow mobility during awake moments while maintaining warmth when resting.
• Bottom zipper provides quick access for diaper changes, simplifying late-night care.
• Breathable merino wool and soft organic cotton are kind to sensitive skin and daily wear.

Care, quality, and assurance

This sleep sack is machine washable for busy families, and Woolino backs its products with US-based customer service and an industry-leading warranty. Woolino has proudly offered wool baby sleep sacks since 2010, combining heritage with contemporary design.

Space glow detail

Glow-in-the-dark accents provide a gentle nighttime cue, helping you locate the sack in dim rooms while keeping the focus on quiet, restful sleep.

Real-life use cases

Ideal for bedtime routines, nighttime feeds, and calm naps, the sack travels well for grandparents’ visits or trips away. Its durable fabrics stay soft after many washes, making it a practical staple as your baby grows.