For Babies Weighing More Than 4Kg/8.8Lb. Maximum Baby Length 68Cm/27. 1.0 Tog - For Warm Summer Temperatures Of 21-23 Degrees C (69-74 Degrees F). As With All Sleeping Bags, Always Ensure That You Buy The Correct Size For Your Baby, Remembering To Check That Your Baby’S Head Cannot Pass Through The Neck-Hole When The Product Is Fastened For Use. Never Use A Duvet Or Quilt With A Sleeping Bag Or Your Baby Could Overheat. Instead, Select The Correct Tog Rating, Adjust What Your Baby Wears And Regularly Check Your Baby Is Not Too Hot Or Too Cold. For Use In A Cot Or Crib.