ergoPouch Sleep Suit Bag 0.3 TOG - Sage (Various Sizes)Patented 4 way Zip Design The ONLY sleep sack with convertible legs perfect for car seats & strollers. Our exclusive zipper system (US UK Patent) works with 5 point harnesses, eliminating dangerous loose blankets during travel. Seamlessly transition from car to crib without waking baby a game changer for active families. Takes the Guesswork Out of Safe Sleep Temperature: What is TOG? Think of it as a warmth rating, like your comforter. 0. 2 TOG (71 F