As opposed to clothing, when you spill espresso over it, you can just dump it in your washer. You can't just do that with your mattress. Also, you can't just wash the mattress below operating drinking water as it is essential to preserve it as dry as achievable. Getting it moist can cause mould development and you do not want that further mattress dilemma.
Very first items 1st, you need to wipe the extra liquid.