Q: Should I worry if my dog sleeps all day?

A: Dogs sleep far more than humans – typically 12–14 hours per day, and even up to 18 hours for large breeds, puppies, and seniors. Rest is a vital part of their biology: during sleep, dogs consolidate learning, regulate hormones, and repair tissue.

However, a noticeable increase in sleep or lethargy can sometimes indicate illness, pain, depression, or age-related changes. Watch for subtle clues: slower movement, reluctance to play, changes in appetite, or panting at rest. These can point to joint discomfort, thyroid imbalances, or metabolic issues.

If your dog is otherwise bright, eating well, and eager on walks, extra naps are likely just part of their normal rhythm. But if sleep replaces engagement – especially in younger dogs – it’s worth a vet check. Sometimes, ‘just tired’ is your dog’s way of showing something isn’t quite right.