noxious - injurious to physical or mental health; noxious chemical wastes; noxious ideas. harmful - causing or capable of causing harm; too much sun is harmful to the skin; harmful effects of smoking.
Newborn kittens, also sleep more -- upwards of 16 hours a day. Although newborns sleep a lot, it generally isn't continuous. Newborn kittens take frequent naps which often last for mere minutes at a time. Young cats usually develop their sleeping behaviors once they're around three months in age.
ADVERTISEMENT. Cats sleep an average of fifteen hours a day, and some can sleep up to twenty hours in a twenty-four hour period.Which raises the question: Why do cats sleep so much?DVERTISEMENT. Cats sleep an average of fifteen hours a day, and some can sleep up to twenty hours in a twenty-four hour period. Which raises the question: Why do cats sleep so much?