Dogs who sleep on the bed can live 4–6 years longer than dogs who don’t. And science explains exactly why. Point 1: Safety = deeper sleep When dogs sleep close to their humans, their nervous system relaxes. They feel protected, which allows them to enter deeper, more restorative sleep 💤 This is when the body repairs itself and slows aging. Point 2: Stress hormones drop Sleeping alone keeps a dog’s stress response slightly active. Sleeping together lowers cortisol levels, which protects the immu