No More Sleepless Nights: 47" x 47" (120 cm x 120 cm). Momcozy muslin swaddle blankets are all large enough to wrap more securely from shoulder to foot. Safe and Skin-Friendly & Easy Care: Momcozy newborn swaddle blanket, free of harsh chemicals and natural and pollution-free, are perfect for a baby's sensitive skin; The muslin swaddle blanket simply hand wash or machine wash in cold water and mild detergent, they get softer and softer with each wash.