I have bought 5 Casper pillows recently,  two of your standard, one of the foam type and two Down pillows. 

No contest, your standard pillow is the best I have ever purchased. It is followed -closely by the foam type one and in  third place is the down pillow.

The Down pillow is to thin/flat for me, It has no support. That being said, I am enjoying it on top of the standard pillow at night when I want to be propped up for reading. 

I would purchase the other two types pf pillows and recommend them in a heart beat but not the down- not for me .

Thank you .