Why is the zipper upside down? December 18, 2024 20:18 Updated The zipper is inverted to allow you to unzip the SleepSack wearable blanket from the bottom for easy diaper changes Related articles What is a TOG Value? Why is the zipper upside down? Why is the SleepSack Wearable Blanket sleeveless? I only received part of my order. When will I receive the rest of it? How do I store BassiNest in between usage?