Hydrogen peroxide, I had a child puke all over hers once and this is what I used.
Hydrogen peroxide is used in hospitals to disinfect surfaces.
How Does Hydrogen Peroxide Disinfect?
Hydrogen peroxide works very well as a disinfectant because of its ability to act as an antimicrobial agent. This means that it is able to quickly kill bacteria. When hydrogen peroxide encounters bacteria, it quickly oxidizes some of the components of the outside of the bacteria. This can not only be toxic to them, but can punch holes in the membrane that the bacteria use to protect and contain themselves. As a result, the bacteria quickly die. The United States Food and Drug Administration considers hydrogen peroxide an approved and safe way to kill bacteria
Once you scrub it in over the surface I would use a mild detergent to clean it again and if you want it to dry quickly put some rubbing alcohal in a spary bottle and spary the whole thing down. Then set it up with towels under it and put a fan on to dry it quickly as you dont want any mildew to set in!
Bleach will fade and breakdown the plastic fibers try to avoid it if you can!