I had the same problem and there's no direct way but what I did was to add a linen charge of just 2 or 3 euros per stay. For several nights, it hardly affects the price but for just 1 night it will give you 2 or 3 euros extra to cover your extra work in cleaning, laundry etc. You can choose any extra charge you wish for cleaning or linen.
You can use the cleaning fee to tack money on to the booking. Or you can have a nightly rate and then offer a discount for 2, 3, 4, 5, etc. night stays.