Help your little one sleep soundly and safely with this thoughtfully designed 1.0 TOG cotton muslin sleep sack ideal for moderate room temperatures. Crafted from 100% breathable cotton muslin, the fabric allows for natural airflow and temperature regulation throughout the night. Soft against delicate skin and gentle enough for everyday use, the muslin weave is designed to feel smooth, lightweight, and comfortable over pajamas for an added layer of warmth. The sleeveless design encourages freedom of movement while maintaining a snug, secure feel. A convenient one-way zipper closure with a protective guard makes nighttime diaper changes quicker and easier, minimizing disruptions for both baby and parents. Available in three sizes — Small (28"), Medium (32"), and Large (34”). In timeless neutral tones with a classic solid muslin weave, it coordinates effortlessly with modern nursery décor and sleepwear. Ideal for everyday use and wonderful for baby showers or registry gifting, this cotton sleep sack is a must-have essential for creating a cozy, secure sleep routine.