Many comforters are dry-clean only because the manufacturer did not do thorough enough testing to ensure that the fabric and the contents could withstand a cycle in your home's washing machine. Washing some types of dry-clean only comforters can ruin their appearance and cause them to shed more than they did before. To keep your comforter in the best shape possible, follow your manufacturer's recommendation by dry-cleaning it. Use a home dry-cleaning kit to save money on professional dry-cleaning.
Blot dry-cleaning stain remover over any stains you've found on the comforter using a clean cloth.
Let the comforter sit according to the manufacturer's recommendation.
Place the comforter in an extra large dry-cleaning bag. This is part of the dry cleaning kit. Use one intended for a comforter or large blanket.
Place the dry-cleaning cloth in the bag. This cloth contains the chemicals that will remove bacteria and dirt from the comforter.
Close the bag and place it in the dryer.
Turn the dryer on to medium heat and set the cycle according to the manufacturer's recommendation.
Remove the comforter and hang it out to dry for several minutes.