aden + anais Baby Sleeping Bag – 100% Cotton Muslin Wearable Swaddle, TOG 1.0, 18–36 Months

Introducing the aden + anais Baby Sleeping Bag, a 100% cotton muslin wearable blanket designed to simplify bedtime. Worn over pajamas, it creates a single, cozy layer that can replace loose blankets in the crib. The fabric feels soft and breathable from the first touch, and the sleeveless silhouette promotes air circulation around tiny arms and shoulders. With a timeless drape and durable weave, this sleep sack offers everyday comfort that stays gentle wash after wash as your baby grows.

Effortless warmth and easy transitions

conceived for real nights at home or on the go, this wearable blanket stays in place as your baby moves, thanks to a roomy silhouette that cannot be kicked off. The TOG 1.0 rating targets light warmth for moderate room temps, making it a versatile option when paired with regular sleepwear. The two-layer muslin construction blends softness with durability for repeated washes while retaining its shape and feel.

• SAFE AND COZY DESIGN — a pre-washed wearable blanket that minimizes loose blankets in the crib, with a 1.0 TOG warmth profile.
• SOFT AND BREATHABLE — two layers of lightweight 100% cotton muslin provide airflow and comfort; sleeveless cut helps prevent overheating.
• BABY-FRIENDLY — bottom zipper allows quick diaper changes without fully undressing; roomy sack accommodates kicking while keeping baby cozy.
• PREMIUM FABRIC — durable muslin that softens with each wash and maintains shape for regular use over time, replacing loose blankets.

In daily use

In bedtime routines, this sleep sack slides on quickly over pajamas and zips from the bottom for fast diaper checks. Its design encourages natural movement while helping maintain a consistent layer, so caregivers enjoy fewer blanket adjustments through the night. The breathable material supports comfort as the baby grows and changes positions, making it a practical option for both cool nights and warmer rooms.

• Versatile warmth for cool rooms and transitional seasons.
• Bottom zipper enables quick diaper changes without full undressing.
• Roomy sack allows kicking and movement without losing coverage.

Care and longevity: The muslin fabric is designed to endure regular washing while staying soft and true to its original shape. Use over regular sleepwear to replace loose blankets and create a tidy, secure crib setup that can accompany your baby through growth spurts and changing seasons.