No longer does dog-boarding need to mean cages of cold concrete. Pet lovers who detest kennels or don’t want to entrust their house keys to a pet sitter now have an alternative: Rover can be treated to constant love and attention as a houseguest at another pet lover’s home. “Certified host homes” are the latest option for dog lovers going on vacation.

Pioneering the way is Phoenix-based Sleepover Rover, Inc. Gee, is this limited to dogs? How about a certified host home for my boa constrictor?