Your little one will sleep comfortable with this pajama set. You'll love these cute and comfy pjs! Top and bottom are made of soft cotton. For fire safety, these pajamas should fit snugly. 100% Cotton. Machine wash warm, inside out. These pajamas are snugly fitted pajamas. If your child is above average consider a bigger size because of the snug fit. We hope you enjoy these pajamas from our unique collection.SAFETY : For child's safety, cotton sleep sets should always fit snugly. Loose fitting garment is more likely to catch fire. All of Family Feeling Baby's products are strictly under Consumer Product Safety Rules.