I have a couple teenage girls who would love to babysit. I also have a 6 year old gaming fanatic boy.
There are tons of things to do in Zurich for a month. Zoo, pedaling on the lake, hiking, taking a train to Lugano just to see the sun

...
You will find lots of fun stuff.
Anyway, PM me if you need a babysitter and I'll pass along your contact info to my girls