Neoprene wetsuits should be cleaned immediately after each use.
Do not place Neoprene into a washer or dryer.
Do not use detergent, soap or bleach on Neoprene.
Funny seeing as how I have thrown mine into the washing machine a few times now and it hasn't hurt it one bit. I wouldn't put it in the dryer(I'm thinking it might melt), just hang to dry.
I always wash mine in a bucket with water. I dive and always wash my diving gear with water. Same with the playbook and it works fantastic.
tip: Do not dry your neoprene in the sun as it will become brittle at some point. Just dry it inhouse, let it rest on the kitchen counter or something.