Yes, you can wash a Fisher Price play mat. It is recommended to spot clean it by using mild soap and cold water. Ensure that the soap is completely rinsed off before allowing it to air dry. If necessary, use a damp cloth or sponge with mild detergent and then rinse thoroughly until all traces of the detergent have been removed from the surface. Allow your mat to dry naturally in an open space away from direct sunlight or heat sources as this can cause discoloration or damage to its material over time. Make sure that all pieces are securely fastened together before washing so they don't become misplaced during cleaning.