うちの犬は寝るとき毛布を自分の身体に合わせて丸めちゃう癖がある。 みんなのところはどうよ？【再】
A viral post by a pet owner describes their adorable dog skillfully rolling up a blanket to perfectly fit around its body for sleep. The owner's question, "Does your dog do the same?", sparked a flood of responses like "Mine too!", "Such a common dog habit!", and "The best stress reliever!". It seems everyone is finding comfort and joy in their dogs' unique sleeping poses.
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Comfort Behavior
The act of dogs rolling up a blanket to sleep isn't just a quirk; it can be interpreted as a "comfort behavior" they perform to gain a sense of security and comfort. Comfort behaviors refer to a series of actions animals take to calm themselves when feeling anxious or stressed, or simply to seek coziness. Examples include licking their bodies, yawning, stretching, and, as in this case, pressing against specific objects. Dogs instinctively prefer confined or hidden spaces to protect themselves from predators and maintain body temperature. By rolling a blanket to fit their body, they are thought to be creating a sense of enclosure and security, much like being in a den. This can be seen as a remnant of the "denning" instinct inherited from their wolf ancestors. A blanket that fits snugly acts as a psychological "barrier," providing a feeling of protection from surrounding stimuli. Indeed, research shows that a secure sleeping place reduces stress in dogs and promotes quality sleep. Through this behavior, dogs calm themselves and achieve physical and mental relaxation.
Canine Sleep Behavior and Bed Preference
Canine sleep behavior, much like human sleep, involves both REM and non-REM stages and is deeply connected to their health and happiness. Dogs are said to sleep for an average of 12-14 hours a day, much of which is light dozing, but deep REM sleep is also essential. Several instinctive factors influence their choice of sleeping place. Firstly, "safety." Wild dogs and wolves choose narrow, enclosed places like caves or thickets to protect themselves from predators and raise their young. The act of rolling a blanket around their body is nothing less than artificially creating this "enclosed space." Secondly, "thermoregulation." To maintain a stable body temperature, dogs seek cool spots on hot days and warm spots on cold days. By wrapping themselves in a blanket, they try to retain their body heat and stay warm and comfortable. This tendency can be particularly pronounced in smaller breeds or those with short coats. Furthermore, as social animals that once lived in packs, dogs have a habit of seeking comfort by huddling together with other individuals. It is also suggested that they may perceive the blanket as a "companion," gaining psychological stability by pressing against it. Such behaviors can be seen as an expression of dogs' fundamental needs and instincts within a modern home environment.
Enrichment
Enrichment refers to devising various efforts to allow animals to live a mentally and physically rich life under human care, by stimulating their instinctive needs and behaviors. This goes beyond merely providing food, extending to offering toys, intellectual stimulation, social interaction, and ensuring comfortable resting places. The action of "a dog rolling up a blanket" is an excellent example of a dog utilizing an enrichment item—the blanket provided by its owner—to meet its own needs. For dogs, a blanket is not just a tool for warmth but also a crucial instrument for satisfying the aforementioned comfort behaviors and bed preferences. For instance, dogs have an excellent sense of smell, and they can gain a sense of security by sniffing the owner's scent or their own scent clinging to the blanket. They can also satisfy their hunting instincts and play urges through behaviors like pulling, chewing, and digging the blanket. Appropriate enrichment reduces boredom in dogs, prevents stress behaviors (e.g., excessive barking, destructive actions), and promotes mental stability and physical health. The perspective that even a single blanket can significantly contribute to a dog's quality of life (QOL) is highly valued in modern pet ownership.