Have a goose down sleeping bag, with wool liner and canvas cover. Do you have experience with washing and drying of these.

Yes

Brett is correct,full time staff and modern,efficient machines.

When I wash it at home it goes on delicate with warm water. Then dry it with tennis balls 4 in dryer and use cool to warm air in dryer 20min then take out and dry by air fan in house or outside. Never trust dryers at Laundromats they snags where the wholes are unless you bring a hammer to knock them down

Yes, the staff can help you on that.