METABOLISM
A cat sleeping curled into a tight ball to conserve body heat
Cats conserve energy by sleeping more than most animals, especially as they grow older. Daily durations of sleep vary, usually 12–16 hours, with 13–14 being the average. Some cats can sleep as much as 20 hours in a 24-hour period. The term cat nap refers to the cat's ability to fall asleep (lightly) for a brief period and has entered the English lexicon—someone who nods off for a few minutes is said to be "taking a cat nap."
Due to their crepuscular nature, cats often are known to enter a period of increased activity and playfulness during the evening and early morning, dubbed the "evening crazies," "night crazies," "elevenses," or "mad half-hour" by some. The temperament of a cat can vary depending on the breed and socialization. Cats with "oriental" body types tend to be thinner and more active, while cats that have a "cobby" body type tend to be heavier and less active.
The normal body temperature of a cat is between 38 and 39°C (101 and 102.2°F). A cat is considered febrile (hyperthermic) if it has a temperature of 39.5°C (103°F) or greater, or hypothermic if less than 37.5°C (100°F). For comparison, humans have a normal temperature of approximately 36.8°C (98.6°F). A domestic cat's normal heart rate ranges from 140 to 220 beats per minute (bpm), and is largely dependent on how excited the cat is. For a cat at rest, the average heart rate should be between 150 and 180 bpm, about twice that of a human.
Cats conserve energy by sleeping more than most animals, especially as they grow older. Daily durations of sleep vary, usually 12–16 hours, with 13–14 being the average. Some cats can sleep as much as 20 hours in a 24-hour period. The term cat nap refers to the cat's ability to fall asleep (lightly) for a brief period and has entered the English lexicon—someone who nods off for a few minutes is said to be "taking a cat nap."
Due to their crepuscular nature, cats often are known to enter a period of increased activity and playfulness during the evening and early morning, dubbed the "evening crazies," "night crazies," "elevenses," or "mad half-hour" by some. The temperament of a cat can vary depending on the breed and socialization. Cats with "oriental" body types tend to be thinner and more active, while cats that have a "cobby" body type tend to be heavier and less active.
The normal body temperature of a cat is between 38 and 39°C (101 and 102.2°F). A cat is considered febrile (hyperthermic) if it has a temperature of 39.5°C (103°F) or greater, or hypothermic if less than 37.5°C (100°F). For comparison, humans have a normal temperature of approximately 36.8°C (98.6°F). A domestic cat's normal heart rate ranges from 140 to 220 beats per minute (bpm), and is largely dependent on how excited the cat is. For a cat at rest, the average heart rate should be between 150 and 180 bpm, about twice that of a human.
Come on, children. Just stay still.