Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not old enough

I bought this product in hopes that my son wouldn't wake up during the night searching for his pacifier, but unfortunately he still does. I think he is still too young to hold onto his little Wubbanub frog. He is 4 1/2 months and still prefers his old pacifier. But I will definitely try again in a month or so.