SUCCESS MAKING

Lullaby CDs for use during nap times..?

I am looking for any soothing lullaby CDs to use while my son is trying to take a nap. He will nap for 2 to 3 hours when he is at daycare 3 days a week. However, I cannot get him to sleep for more than an hour at home. I attempt to keep him on the same schedule as best as possible. The only CD I have is the Fisher Price Lullaby one with the purple cover. I use this in the car to calm him down for napping on trips and wanted something else for a little variety. I prefer the ones that are only instrumental versus those with singing. I was wondering if you had any success with a CD with your baby. Thanks for any input you can give.

http://www.robeez.com/product.aspx?ProductID=555&PriceCat=2&Lang=EN-US
My daughter zonks right out to this one.