“Sleeping pills are extremely hazardous,” Arizona State University sleep researcher Shawn Youngstedt told CNN. “They are as bad as smoking a pack of cigarettes a day. Not to mention they cause infections, falling and dementia in the elderly, and they lose their effectiveness after a few weeks.”
Frankly, I'd be interested more in data than in Shawn's opinion, although I will admit that our dog is a pill, and especially when sleeping, he can be hazardous. Well, mostly if he suddenly awakens. You're looking at death from the ankles down if he doesn't recognize you.