It's no joke. We took our little Soeji camping and the dogs. It got pretty cold at night, so we piled the layers on Soeji. I don't think I slept much the first night for fear that she would freeze. But every time I checked on her, she was quite warm. During the day it was wonderful weather because it wasn't BLAZING hot!I learned that, at least with Josie, site seeing needs to be done in short bursts followed by a good nap. I am sure when she gets a little older she'll last a little longer.