Today, we try thicker foam in the boxes. I'm going to find a safe configuration for this, one that's actually reliable when it's a 70 degree room, or in 30 F outside. It's become clear that a standard Superior shipping box with a 72 hour heat pack taped to the lid will A) cook the snake if you put it in before it peaks, and B) not hold the temperature at a life-sustaining level if the temperatures outside are in the 30s. It's just not good enough.