In our house, everything needs cleaning in a regular time, so does silk comforter. But actually frequent washing is bad for silk, so daily care is very important.
Always use a cover with your Chinese silk comforter. Although it means you won’t have the silk next to your skin, it also means the oils and skin won’t find their way onto or into the silk either. Using a top sheet is also advised. You can launder the top sheet often (at least once a week), and the cover itself less frequently (for example, on a monthly basis). A duvet cover will preserve your comforter so that frequent cleanings of the comforter itself are unnecessary.
Tell you a secret, if properly covered, silk comforter set will almost never need cleaning.