Cleaning a baby gym

[lazycat]

How do I clean a baby gym? Is it enough to wipe it down with a damp cloth?

Aye.
They tend not to be washable. There is usually an instruction label on it.
Don't worry too much - a few germs are healthy!

Check the label - mine is washable, I used to put it in the washing machine fairly often as DS often had leaky nappies and puked on it.