Opossums are not narcoleptic. Narcolepsy is a sleep disorder that affects humans and other animals and is characterized by excessive sleepiness, irresistible bouts of sleep, and sudden loss of muscle tone. Opossums, on the other hand, are known for their ability to "play dead" or "feign death" when threatened. This is a survival mechanism called "tonic immobility" that temporarily paralyzes the opossum and makes it appear dead to potential predators. This is not the same as narcolepsy and is a normal response for opossums in certain situations.
If they are, they're doing a sucky job at it if they want to start an MMA career. I mean, my cat sleeps 23 hours a day, gets up periodically to eat and then, well, who knows... :EDIT: I think cats, as a domain, are responsible for most extinctions.
