Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Key to a Baby's best night of sleep

I first heard this c.d. when I was a nanny for a little girl. It made rocking her into nap time so much more of a delight. When I had my own children I couldn't wait to put them to bed. Then when my girlfriend said she was having problems getting her newborn to sleep, I bought her this c.d. She said it was both the baby and she's best night sleep ever.