Night-time phone calls for all the wrong reasons

I got woke up at 2:38a.m. this morning, thinking it was Shannon, telling me to come 'cause the baby was on the way, but no, it was a friend/neighbor telling me that his wife had died. I thought he meant she had just died and was right there in the room with him, but no, he said she had died coming home from work somewhere between 6:00 and 7:00p.m. and was in a car wreck (but the police officer told him she was already dead when the wreck happened, I guess she had a heart attack. The friend said his wife had told him she was not feeling well before she went to work). So why was he calling our house at 2:38p.m.? He says he didn't mean to wake us up, but that he just couldn't sleep and had been out looking for his wife's dog (I think she took the dog with her to work and the dog somehow got out of the car at the wreck site). I think the man was a little overwrought which is understandable. So I humored him and said the appropriate sentiments that you say during someones time of bereavement. I really can't remember what I said cause I was half asleep when I was saying them, but I didn't hurry him off the phone or anything like that. Afterwards, Eddie and I were unable to go back to sleep so we got up and I made breakfast and we watched a little television. Then we both were zoned out and took a nap, which has made me even more weary, blurry-eyed and just not functional. Why does that seem to happen?