Puffy, Fluffy Little Sleep Sack Yes please! This snuggly little sack is the perfect weight and size to keep your nugget safe and warm, day or night. The 2 way J zip makes for super easy changes and transitions! 2-Way J Zipper TOG rating 1.5 Quilted lining Size 0 to 9 months measures 26 inches Size 9 to 18 months measures 30 inches Tagless size label for total comfort Safe for sensitive skin