The award-winning 4 Season™ Ultimate Baby Sleep Bag keeps your baby at a perfect temperature throughout the night, year-round. That means there’s no need to worry about which weight sleeping sack to use, or whether your baby will be too hot or cold while sleeping – they’ll always be just right!

Made with super-fine and supremely breathable merino wool, it helps keep your baby warm when it’s cold and cool when it’s warm. That temperature regulation means that your baby will sleep comfortably throughout the night– and that means a better night’s sleep for you too.

It comes in a universal size that fits babies from 2 months to 2 years. So, instead of buying a different sleeping bag for different seasons, as well as buying larger ones as they grow, you just need one Woolino sleep bag for your baby, right up until they turn two!

Features

• Premium Natural Fabrics: silky soft Australian merino wool lining & organic cotton outer
• Can be used in all 4 seasons - suitable for room temperatures 63-75F (17-24C)
• Merino wool regulates body temperature unlike any other fiber, keeping baby warm when it's cold and cool when it's hot
• Two-way zipper for easy dressing and diaper changes
• Zipper guards to protect child's skin and to discourage child from chewing on the zipper pull
• Nursery thermometer with dressing guide included
• Woolmark certified merino wool; GOTS certified organic cotton; All the fabrics and accessories are OEKO-Tex 100 certified (tested for 100 harmful substances)