No, it certainly is not advisable to machine wash a dry clean only item. There is a reason for the label, often to save and preserve the material. Machine washing can lead to shrinkage or actual rips and tears. If the piece if of value to you it is best to seek out a dry cleaner.
That depends on the material and type of filler if any used. You can try a delicate cycle but whatever you do , do not dry in the dryer. I had a sateen comforter from old and my Grandma washed it & Dried it in the drier, it came out all lumpy and unusable. That was my blankee and I was mad at my Grandma for a week. Line dry or take it to one of those dry cleaners where they will clean comforters for $10.00 and fold them and put them in a bag, the laundry and Dry cleaning combination places often clean comforters for a reasonable price and save you the worry and labor.
No. If it says Dry Clean Only, trust it! Once, I washed and dried a comforter (that could be laundered) and it was too big to turn in my dryer (once it started to fluff), and it got scorched. It wasn't turning properly, so it was just getting heat in one or two spots and it ruined it. *** Spot clean it, buy a dry cleaning kit from Wal-Mart or somewhere, and take it to the laundry mat and put it in a Big dryer to clean it. You'll be glad you did! : ) ~shelle~
Some of them can. But with the cost of most comforters today, I would not take the chance of ruining it.