Hellobee Boards

same here, I wash our sheets, pillowcases, and thin blanket every week but it's been awhile since our pillows and comforter has seen teh machine. Comforter is too big for our washing machine so we have to take it in, which means more work! haha

Sheets and pillow cases 1x a week.
Comforter luckily is a light fluffy Korean blanket that fits in our wash! I wash it 2x a month.
Our winter blanket I didn't wash the entire winter because it's too big for our washer and I didn't feel like lugging it to the lavanderia

We use a down comforter, so I wash the duvet once a season, but never the comforter. I change pillow cases and the zippered pillow proctor around them, but they are also down, so I've never washed them.

I never wash my pillows. I just buy new ones. My comforter I"ll wash once every few months?

I wash our down duvet and pillows about twice a year. I had one of our pillows "internally bleed" once and it was not pretty.
The inside was divided into 2 chambers: duck down and goose down, and when it broke in the wash the pillow refused to dry and clumped up all over and smelled horrible! Luckily it was covered under manufacturer warranty so I was able to get it replaced!