Sleep patterns = Abnormal

I have really felt like I've missed out on all of the excitement lately. In addition to sleeping through the bomb of two weeks ago, I slept through an earthquake in the wee hours of Saturday morning. Although it wasn't exactly catastrophic (measured 5.2 and, thank goodness, left no victims), I definitely felt left out as I listened to tales of thoughts, reactions, and experiences of those who felt it all day long on Saturday. I was the only one who had nothing to contribute to earthquake-related conversations. :(

These sleeping patterns have me perplexed: Why is it that I can sleep soundly through a bomb and an earthquake, yet I've spent many sleepless hours due to insignificant, unexciting noises? For instance, I have had a few nights during which I've been terrorized by the "zzzzzzing" of a mosquito, and the meowing of the cute little kitten featured below (whom we found residing in a gap in the wall outside my room) kept we awake for several hours for three nights in a row. Perhaps I have a special sleeping defense mechanism that allows me to block out anything that could potentially be scary??? Maybe I should not complain... ;)