Discover a hassle free sleep with the new aden+anais essentials wrap swaddle Loose bottom allows proper hip development and convenient zipper - bottom keeps baby happy during diaper changes and ensures a more relaxing and comfortable sleep. Must for new and anticipated parents, these 100% cotton swaddles are the key to establish a consistent sleep routine for babys important first months. PRACTICAL: Soft and noiseless hook and loop closures will stay firmly in place without interfering with babys rest, adjust to grow with your baby. CONVENIENT: Silent zipper glides along the bottom seam, so baby can be happy to change diapers. EFFECTIVE: Promotes a good nights sleep by recreating a safe and cozy feeling of the uterus while preventing your babys natural Morrow reflection from waking up. PROMOTES HIP HEALTHY: Loose bottom design ensures baby legs are positioned in natural frog legs when sleeping, allowing the hips to move freely. This is important for proper hip development. SAFE: No more thinner blankets in your crib. 1 Pack = 3 Pieces (100% Cotton) Size: Newborn 0-3 Months (3-6.5kg)