The Noodles are, indeed, the punched out part from the Dunlop mattress layers with the holes in them. See my post below. At the CozyPure factory they have the noodles in jars so you can see what they are. After 21 months our LaNoodle toppers and pillows are like new.
https://forum.mattressunderground.com/t/richmond-virginia-mattresses-and-cozypure