wget set name of downloaded file

I'm using the following command to download web pages into static html files:

wget --quiet http://mytestdomain.com/sitemap.xml --output-document - | egrep -o "http?://[^<]+" | wget -i -

But it just outputs each file like this:

index.html

index.html.1

index.html.2

My question is, is it possible to modify this command so that each saved file uses's the original page's title instead of index.html?

Thanks