Dario, I agree...I would hate to wake up not breathing either. :)
We've never had the CO go off, just the smoke detector for similar reasons as the others, I have had the CO beep when there was something wrong with it, but it was so long ago I dont remember why.
Got my 'superloud American horns" from Griot's yesterday, instructions seem kinda involved for something I thought would be a straight swap out.
I may have to rethink how my bed extensions are attached. These Stanley 'foldout shelf supports' keep popping the rivets that hold the pivots.