This toy has been truely a lifesaver! The Fisher-Price aquarium attachs to the side of the crib, plays music, or water sounds and lulls our Sophia to sleep day or night. Most times when it is bed or nap time, there is little to no fussing, but on days that it is we just turn this on and walk out of the room; it plays in 7 minute cycles and she has learned how to change the songs herself, and after a few minutes it has her calmed down and fast asleep.
It is even nice in the morning time, if she gets up too early and I am not ready to get her out of her crib she will play with the aquarium and just continuing laying there watching the fish and singing along, so when I do finally go to get her up she is in a happy mood...much better for mommy and Sophia!
