Commercial Dry Cleaning

We've always washed our bags in our regular machine, down or not. Important to have days to dry out, and if down, to fluff up.

Here's a do-it-yourself from REI.
https://www.google.com/search?client=firefox-b-1-e&q=how+to+clean+a+down+sleeping+bag#kpvalbx=_-CEhY8-4HIbekPIPlICFiAU_18

If it's down, do it yourself.

Otherwise: Never dry clean your sleeping bag. Solvents used in dry cleaning can strip the natural oils from down that help it retain loft. Never use fabric softener, bleach or alternative-bleach products. Never wash a sleeping bag in a top-loading machine with an agitator.

Try Oriental on Fairview just south of Hollister. The place looks like a shack but they are good and accept cash only.