If you want spoilers when it said he slept in his bed it meant he's *COUGH* dead *COUGH*. So yea my depressing story. Explanation A: A guy who has a wife and twelve kids. THey all die, he's the last one left, shabam he dies in his sleep. Explanation B: ZOMBIE APOCOLYPSE (did I spell that right) Last guy who is not a Zombie meets last woman who is not a ZOmbie. Love collides, they collaborate, and make little zombie killer babies. TO bad so good at this. They all die and the guy turns into a Zombie in the end. Explanation C: I'm too lazy to come up with one. Just ask my science teach she'll vouch(did I spell that right) for my laziness.