What is a grobag® baby sleeping bag? A grobag® baby sleeping bag is a wearable blanket that will keep your baby at a comfortable temperature all night long. A safe and sound night's sleep for your baby means peace of mind and more sleep for you! We stock a wide selection and variety of Grobag Baby Sleeping Bags. We know how important it is to keep your baby or toddler warm during the night and with one of our sleeping bags you can do just that and know that by the morning you little one will still be in his sleep bag from suppliers such as Grobag and Petite Bebettes. In all sizes and colours.