Are your kids noisy when they sleep? What sort of noises?
Both of mine grunt and coo in active sleep!
Levi is a champion grunter-he has a habit of waking me up in the morn by going mmmm...mmmmm..mmmm...really reallly loud, he also laughs in his sleep, sometimes cries a bit, and he does snore to sometimes or breathe through his mouth sometimes so you can hear that sometimes to
Ivy grunts and coos too. She makes lots of very expressive faces, and the smiles... oh my gosh, I don't think any of my kids smiled this much in their sleep!