Yep, memory foam can get wet, and water won't damage the memory foam at all. In fact, if you have a pillow made from memory foam, you can pour warm water with mild detergent over the pillow until it can clean. When you are washing it, squeeze gently instead of wringing, allowing the detergent to get into the foam. If you have submerged the pillow in water over it, don't put the memory foam into a dryer. Allow the foam dry and put it in place with well air circulation, or keep it outdoor on any warm day!