Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for hot climates

These pads depend on the underlying surface being cool, which doesn't happen outdoors in Phoenix in the summer, where heat penetrates a couple of feet into the ground or other outdoor surfaces. And they're not suitable for indoor use since they'll inevitably get punctured and leak. The cushioning is good, though, and in temperate climates (or air conditioned dog house/kennel) they're probably quite comfortable.