Dogs follow a similar sleep pattern to humans, including periods of Rapid Eye Movement (REM) sleep - the stage associated with vivid dreaming. Dogs often twitch, whimper, or move their paws.
Studies, like MIT, have shown that animals such as rats dream about their day's experiences, similar to humans. While no specific study has been conducted on dogs, it's plausible they too dream
Based on the similarity of their sleep pattern to humans and behaviors exhibited, it's speculated that dogs likely dream about common dog activities such as chasing squirrels or playing fetch.
it's possible they experience nightmares as well. Signs of distress during sleep may indicate a bad dream, but it's essential not to wake them abruptly, which could startle and confuse them.
Regular exercise, a consistent sleep schedule, and a comfortable bed can all help foster good dream experiences for your furry friend.