I like down...mine got too flimsy so I requested a firm from Bed Bath & Beyond for Christmas last year. Got it but it was too high and gave me a stiff neck....thought is would get squishy but it didn't so I am back to my flimsy. I plan to take some out of the big one and put in my little one and have 2 mediums...but haven't yet.
So...you can get down in different densities.