Pet Sleep Health: Why Your Dog or Cat's Rest Matters More Than You Think
How Much Do Pets Sleep?
Dogs sleep an average of 12-14 hours per day; cats sleep 12-16 hours, with some reaching 20 hours. This is normal — pets are "crepuscular" (most active at dawn and dusk) or polyphasic sleepers with many short sleep cycles throughout the day. However, sudden changes in sleep patterns — sleeping significantly more or less than usual — can be an important early sign of illness.
Sleep Stages in Dogs and Cats
Like humans, dogs and cats cycle through REM (rapid eye movement) sleep and non-REM sleep. During REM sleep, you may observe twitching, vocalizing, paddling movements, and rapid eye movement — signs of dreaming. Brain wave studies confirm dogs and cats do dream, likely processing memories and experiences. This REM sleep is essential for cognitive function, emotional regulation, and immune health.
Where Pets Sleep Matters
Pets sleep better in environments that are quiet, dark, and temperature-stable. Constant disruption by household activity, television noise, or light cycles can fragment sleep and reduce sleep quality. For dogs, orthopedic or memory foam beds significantly improve sleep quality in older dogs or those with joint issues. For cats, elevated, enclosed sleeping spots (cat caves, covered beds) trigger a sense of security that promotes deeper sleep.
Sleep Problems to Watch For
Sudden increase in sleep in a normally active pet warrants veterinary attention — it can indicate pain, infection, anemia, hypothyroidism, or other systemic illness. Restless or disrupted sleep in older dogs may indicate cognitive dysfunction syndrome (canine dementia), pain, or the need to urinate more frequently. Snoring that's new or worsening may indicate a breathing obstruction, particularly in brachycephalic breeds.
The Co-Sleeping Debate
Approximately half of pet owners sleep with their pets. Studies show that pet co-sleeping is associated with increased feelings of security and comfort in many owners, with minimal disruption to human sleep quality in most cases (though this varies). Veterinary guidelines note minimal disease risk from pet co-sleeping for healthy owners. The primary concern is sleep disruption from restless pets — if it affects your sleep quality, transitioning pets to a bed on the floor nearby satisfies both your need for rest and your pet's need for closeness.