NWOT Kyte Baby Medium Sleep Sack, 1.0 Tog. We purchased this for our baby boy but never ended up using it. This is a great gender neutral color, and we love our bamboo Kyte Baby sleep sacks! The 1.0 tog weight is designed for rooms between 69 to 73 degrees, and the medium size is suitable for babies between 18-30 pounds and 26-33 inches in height. Please refer to the Kyte website for additional details.