Have you ever looked at your ridiculously comfortable cat and wonder how they can possibly sleep so much? Why can't you sleep like that? So long and for so comfortably, but until now people just didn't know. However, some new research has discovered that a cat's desire and ability to sleep for a seemingly endless amount of time (or until you break out the wet food) is wired into their DNA.
Dr. Bonnie Beaver, a researcher at Texas A&M's College of Veterinary Medicine and Biomedical Sciences says that cats sleep so much due to the change in their living conditions. Back when cats were wild creatures, they spent much of their time hunting and slept when they could. While this is still the style for the feral cat, today the average house cat sleeps for 15 to 22 hours per day. Dr. Beaver studied the brain wave scans of cats and found that while they look like they are sleeping, most of the time they are merely resting waiting for the next hunting opportunity (or in the modern house cat's case, waiting for the next meal). Only rarely to cats enter REM sleep in which they exhibit outward signs such as twitching.
Since cats only have to walk up to a bowl to get food, the research has turned up that they sleep so long literally just because they can. In fact, most veterinarians agree that if a cat is awake most of the time, there might be something wrong. It is their DNA that tells them that if they are not hunting, they should be sleeping, or looking for a place to sleep. So if they are not asleep and don't seem to be doing anything, there might be some discomfort inside preventing them from it.
For those that have a cat that only seems to sleep and eat, it is recommended to try and stimulate their natural instinct to hunt by hiding their food. This will make a lazy fat cat more active and happier.