Felis silvestris catus:
Cats conserve energy by sleeping more than most animals, especially as they grow older. Daily durations of sleep vary, usually 12to16 hours, with 13to14 being the average. 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".

Holler, now i know why i don't see my cats all the day, they're taking a nap....ahhr, anyway, i love them (i know it's not normal), so they've got their very own virtual space, called Kittycatzclub, nikita mentioned that the name would implicate some "other" meaning or websites. Nah, i don't care about this, they have their own site..basta.