Animals Pets Why Does My Cat Sleep on Me? By Meghan Holmes Writer University of Mississippi University of Alabama Loyola University New Orleans Meghan Holmes is a freelance writer and documentarian based in New Orleans, who writes about the environment, science, food, sustainability, and more. our editorial process Twitter Twitter Meghan Holmes Updated January 12, 2021 ktaylorg / Getty Images Share Twitter Pinterest Email Animals Wildlife Pets Animal Rights Endangered Species Sometimes cats prefer to nap in a private perch or choose the safety of a hidden nook, but sooner or later, most cats end up sleeping on their owner's lap, chest, or even head. Yes, your cat may do this to bond and feel closer to his favorite human, but this behavior is mostly the result of biological instincts, especially how kittens socialize with their mothers and siblings and how adult cats interact with one another in the wild. These are some of the most common reasons why your cat sleeps on you. 1.To Mark Their Territory Cats have scent glands that release pheromones all over their body. Marking humans with these pheromones means that they are part of the cat's in-group, a behavior learned in groups of cats in the wild to distinguish members of the pack from non-members. When a cat sleeps on you, it marks you with its scent so it can be reassured that you smell familiar and safe. Even cats who enjoy solitude may rub and head-butt their owners as part of the same scent-marking process. 2.To Stay Warm Many cat owners are familiar with the sight of their cat sleeping in a sunny patch on the bed, or even knocking over plants and whatever else is in the way in an attempt to get an ideal window napping position. Warmth induces relaxation and sleep in cats, and few spots in the house are warmer than being directly on top of a person. Warmth may also contribute to the initiation or maintenance of restorative sleep in cats, meaning that seeking out warm spots for sleep can help them stay healthy. 3.To Feel Safe Animals are more vulnerable to attack while they're sleeping, and cats are no exception. As a result, cats who see their owners as a sign of safety and security may enjoy sleeping on or near them. This behavior can also be traced back to kittenhood. When young cats are growing, they are typically in large litters with other cats, nursing from their mother, and sleeping together in a group, sometimes stacked on top of one another. Particularly without other cats in the house, humans may have a substitute role in this situation. 4.To Bond With You In experiments to stop cats from destructive scratching and urine-marking behaviors, scent-marking was proven to be a powerful way to preserve cat-human bonds. When your cat sleeps on you and marks you with their scent, it's creating a powerful olfactory reminder that you both belong to the same group. Being close to humans also allows cats to hear and feel familiar and comforting sounds, like a beating heart or rhythmic breaths during sleep, which are reminiscent of safe sleeping spaces with a mother cat and siblings. 5.To Show Affection As demonstrated by a recent study on cat-human bonding, cats are not the solitary creatures they are often portrayed to be. In the wild, cats comfortably live in matriarchal societies and are known to exhibit a variety of group bonding behaviors including mutual grooming, allorubbing, and sleeping together. Sleeping with their owner is one way cats can show affection and caring. Why Cats Sleep on Different Parts of Your Body Cats have been known to sleep on a variety of locations on and around their owners, including their head and neck, chest, and lap. Head It has long been assumed that cats like to be near their owners' heads because that is where the most heat escapes, but the human head actually releases about the same amount of heat as the rest of the body. That said, the head moves less when people toss and turn in their sleep, so cats may stay near the top of the bed for safety. In addition, cats use their gaze as a way to communicate with their owners and other cats, so they may also like being close to their owner's eyes. Chest Kittens spend a large part of their period of formative development sleeping on or near other kittens, leading veterinarians to theorize that the sounds of regular breathing and a beating heart nearby may comfort cats and help them sleep with more ease. Lap While there isn't any definitive research to attest to this, most cat owners know what their cat wants when it jumps into their lap to sleep — to be petted and receive attention. 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