Dogs sleep under covers because it feels warm, safe, and den-like.
Reasons
- Warmth.
- Den instinct: dogs like enclosed spaces.
- Security and comfort.
- Your scent.
- Cold or anxiety.
Safe?
Usually yes. Make sure the dog can breathe and get out.
Concerns
Overheating, especially in heavy breeds.
Tip
Offer a blanket in a dog bed.
Breeds
Dachshunds and terriers burrow.
Instinct behind burrowing
Dogs descended from den-dwelling animals and like enclosed, warm spaces that feel safe. Burrowing under covers gives warmth, security and your scent. Small and short-haired breeds, such as dachshunds and terriers bred to go into burrows, do it more.
- The body temperature of dogs is 101 to 102.5 F (38.3 to 39.2 C), and they seek warm spots in cold rooms.
- Puppies burrow against littermates for warmth and comfort.
- Anxious dogs may hide under blankets as a calming behavior.
Safety
Healthy dogs regulate temperature and will leave if too hot. Puppies, very small dogs and those with breathing problems can risk overheating or suffocation under heavy covers. A dog that suddenly starts hiding more, shakes or avoids food may be sick or afraid, so see a vet. Offer a dog-safe blanket or covered bed as an alternative, and wash bedding weekly.
Instinct behind burrowing
Dogs descend from den dwelling canids and seek enclosed warm spaces. Burrowing under covers provides warmth and security. Breeds like dachshunds and terriers were bred to go to ground.
Safety
Ensure the dog can breathe and exit easily, and be careful with small dogs and heavy blankets. Overheating can occur. A crate or bed with a blanket can also work.
Heritage and comfort
Dogs descend from wolves that denned. Terriers and dachshunds were bred to go underground after prey. Burrowing under covers copies this den behavior and gives warmth, with dogs’ body temperature around 101 to 102.5 F. Dogs also seek the owner’s scent.
Precautions
Make sure the dog can free itself and avoid heavy comforters with small or brachycephalic dogs. Overheating can cause panting. If your dog suddenly begins burrowing more, check for anxiety, pain or illness, especially in older dogs. A heated pet bed or a designated blanket gives a safe alternative.
Based on data from the American Kennel Club and the American Veterinary Medical Association
