However, all these stand true for "a well-adjusted, well-behaved dog," AKC points out. Aside from behavior, other things to consider when sharing your bed with your pup are their size, age, cleanliness, and routine, according to This Dog's Life.
One potential downside of co-sleeping is that your dog will, more often than not, hog the bed. Whether they snuggle super close to you or lay in the middle of the bed with their legs splayed out (something known as starfishing), you might not be getting the restful sleep you need.
Some veterinarians also argue that co-sleeping can facilitate the spread of disease, both from dogs to humans and vice-versa, as well as be a strong allergy trigger.
"You’re probably not allergic to your sweet pooch. But, you could be allergic to what they are bringing in the bed with them," says Pet Fusion, pointing to dirt, pollen, and other allergens that can stick to fur.