You're right when you say that polyester mixes pill over time. However, this truly only applies to sheets. As far as comforters are concerned, they won't pill as quickly or as much, especially if you take care to remove the comforter from the bed whe...
The wife of Edward III, Philippa of Hainault was described as having extremely dark skin and has been referred to as the Black Queen.
I worked for an interior designer and we used Linensource.com for a lot of our bedding needs. They're cheap overall, and they have good clearance sales too. Quite a range of comforters and bedding, in all different thread counts etc. Give it a shot.