I guess it happened while he was asleep like 2am -- when I heard about it I thought it was sleep apnea - Ive had more than a few friends pass from that - He had been intubated a couple time from asthma he had it so bad - kind of scares me because my 5 year grandson was just diagnosed with it ( not sure I believe thats really what he has - he did have a bad cough for several months and I thought it was those stupid cats my daughter wont get rid of ) I havent heard him cough the last few times I was there - My mom always said about cats - open the door and let them go - Ive been tempted