For many pet owners, ending the day with a dog sleeping in their bed is a comforting routine that fosters closeness and a sense of security. However, the practice raises questions about hygiene and health risks, which experts say are generally manageable but worth considering.

Dogs can introduce various contaminants into the bedroom environment. Outdoor walks can bring in dirt, pollen, dust, and plant debris that settle on bedding. Additionally, dogs shed hair and skin flakes that may trigger allergies or asthma in sensitive individuals. Their paws can carry bacteria from soil or other animals, while their mouths often harbor bacteria like Pasteurella and Capnocytophaga. Although these bacteria rarely cause illness in humans, they can lead to infections if transmitted through bites, scratches, or licks on broken skin. There is also the potential transfer of fleas, ticks, and, less commonly, parasites such as roundworms, hookworms, or fungal infections like ringworm.

For most healthy adults and dogs in good care, these issues present minimal risk. The concern increases for certain groups, including infants and toddlers, pregnant women, elderly individuals, patients undergoing chemotherapy or receiving immune-suppressing treatments, those without a functioning spleen, and people with serious allergies or asthma. For these populations, having a dog in the bedroom may be safer than allowing the dog to sleep in the bed itself, and medical advice is recommended.

Despite potential drawbacks, allowing a dog to share a sleeping space offers notable benefits. Many owners report that the warmth and steady breathing of a dog help promote relaxation and sleep, while the physical closeness can strengthen the human-animal bond. Some individuals also feel an enhanced sense of security overnight. However, sleep studies provide mixed findings; a restless or active dog in the bed can cause disturbances, potentially contributing to tiredness upon waking.

Maintaining good hygiene can reduce risks substantially. Experts advise keeping dogs up to date on vaccinations and preventive treatments for fleas, ticks, and worms throughout the year. Regular grooming, including brushing and bathing as needed, helps reduce shedding and odor. Cleaning the dog’s paws after outdoor walks and maintaining trimmed nails protect bedding and skin. Dental hygiene is also important to minimize germ transmission. Bedding should be washed weekly in hot water, and mattresses vacuumed periodically. Limiting contact such as face licking or petting wounds, alongside thorough handwashing after interacting with the dog, further lowers health concerns.

Certain situations warrant keeping dogs off the bed entirely, including when the animal is ill with diarrhea, vomiting, skin infections, or flea infestations, until fully treated. Dogs showing aggressive or protective behavior over the bed and very young puppies that have not completed vaccination and house training also benefit from separate sleeping areas.

Ultimately, sharing a bed with a dog involves balancing comfort with a manageable level of hygiene risk. For healthy individuals with well-cared-for pets, it is generally safe. In homes with vulnerable residents or unwell animals, providing a separate but nearby resting place preserves closeness while minimizing potential health issues.