Sleepless

My babies are not sleepers. Never have been, never will be. They come with a lot of good qualities and traits, but sleeping has never been one of them. (Peter did have me fooled for a couple of months early on, when he did actually sleep a bit at night, but he got over it.) For the most part, I came to grips with this 2 or 3 kids ago. But why, WHY? is it, that on the very rare night when the baby does manage to sleep all night, one of the other kids always gets me up?
I can only imagine that it must be so that I won't get greedy about it when I remember what it feels like to actually sleep all night long.