He will not fall asleep at night and comes in sobbing because he keeps thinking about dying. He wants to be a "sock" or other inanimate objects because they don't die. He's afraid of what happens, but more difficult (I think) is the idea of being without us. We explained about heaven, which works with my husband's Catholic upbringing, but I am agnostic (which I haven't explained in detail yet), and we don't go to church or anything, so it's heaven (or hell) isn't something he's really heard much about. I'm open to discussing more about heaven, but would love any other suggestions of books or other ideas to help deal with this. We haven't dealt with death on a really personal level yet, luckily - he had a classmate when he was 4 who died and we talked about how rare it is for little kids to die, and most of the time people are old (like his great-grandmother, who is 95, and we have said will likely die sometime in the next few years). But we haven't had to deal with anyone very close to us dying, and I am dreading it all the more now with his angst. Help!