Cat Facts Fact: Cats Sleep 2/3 of their life. November 5, 2012 No Comments On average, cats spend 2/3 of every day sleeping. That means a nine-year-old cat has been awake for only three years of its life. Image via GoodWallpapers. cutefact filesleep Previous Post Next Post More Articles On Catnipsum June 24, 2013 Adorable Beds For Your Cat January 4, 2015 Top 5 Cat Breeds 2014 April 18, 2013 Cat-toon : A cat’s resume.