Luna is approaching 5 months, I just noticed yesterday that all he bottom teeth are loose now. She is missing one on the bottom and like 3 on top... I gave her soft food with her pebbles and she devoured it! Later tonight though, she spit up twice. Not sure if it was the food affecting her stomach since I changed it up a bit. I haven't noticed if she has been sleeping more... perhaps because I'm not home as often as a month ago.