It could be so many things. I could be bad dreams, but more likely it could be teething (maybe molars), a growth spurt, or even the onset of a new milestone. Sometimes when they learn something new, like walking, it can even disrupt their sleep. If you are sure he is comfortable, and not thirsty/hungry, then I would try to comfort him without taking out of his crib if possible. If you think he is hungry, maybe try giving him a small snack closer to bedtime in case he is having a growth spurt. Hope he starts sleeping better for you soon.
at 10:20 PM on Sep. 7, 2009