People are over reacting majorly on how this movie is incredibly dark. The smothering joke was a typical offhanded joke, you expect something sweet but look it isn't. No one was actually smothered, no one died and it was just a metaphor for how it feels to be so tired, you fall asleep at random. If anything I felt this movie was really tame. I see what the movie is trying to do but overall it felt pretty boring and the subpar animation didn't help. It does pick up half way through and I think the best scene hands down is the kid comforting "the dark". It shows kids even adults can feel insecure. I don't love it but I feel if I were the target demographic I would enjoy it a lot more. Movies that do this concept better I would say are Monsters University, Kung Fu Panda and How to Train your Dragon.