NWR- Bedding collections

I'm confused...

A duvet is the cover the goes over a plain comforter right? And the pros to that is that you can wash the duvet in the machine right? So if I was to register for this bedding set, I would only register for the duvet and a plain comforter right? (Not the duvet and patterned comforter in other words)...

http://www1.macys.com/catalog/product/index.ognc?ID=250527&CategoryID=45767

And another question, whats the difference between a sham and a decorative pillow? Isn't a sham a 'for show only' pillow? Why does it come in different sizes?

you only need a duvet and comforter.

as for a sham - its the cover to the square or rectangular pillows you put on your bed after its been made.

a decorative pillow is the smaller ones in the front showcased in the picture.

HTH