Our baby sleep sacks will keep your baby toasty warm at bed time. These wearable blankets are a safer alternative to loose bedding and are much easier to use than a swaddle blanket. Our easy-fitting sleep sacks fit infants and babies from approximately 0-9 months. They have a zipper down the front for easy dressing and quick night time diaper changes. The sleeveless design allows for airflow to prevent your baby from overheating because every mom knows that a happy baby will stay asleep longer.