You will need a zipper tool if you want to wash the mattress cover. This tool is stored in a small pocket on the underside of the cot. The mattress cover can be machine-washed on hot (60˚C) and dried in the dryer.
You will also need to unlock the zipper with the zipper tool if you want to wash the cot fabric. The cot fabric can be machine-washed on warm (40˚C). It should not be dried in the dryer, but it still dries quickly since it is mesh.
The mattress foam should be washed by hand.