Why do Yorkies sleep so much?

Yorkies sleep a lot primarily because they are a toy breed, and tiny dogs have longer sleeping patterns than medium- or large-sized dogs. ( Giant breeds , however, have sleep schedules closer to toy and miniature-sized pups.) It’s common for these little dogs to sleep for around 16 hours per day. Originally bred to hunt rats, Yorkies can be higher energy and are more likely to sleep in short, frequent bursts throughout the day rather than for long periods of snoozing.