Would you put a small amounts of your savings each month into bitcoins ?
Yes, what I do is before I deposit to the bank I'm not forgetting to include a fund for my bitcoin investment and if possible I'm making it more every month if there's not that much expenses for the whole month. I'm treating it now as my pension. 
How much would you put in % ? I am quite confident to put 10% and raise it slowly from here.
Not that really high, it goes around from 1%-5% depends on what like I said on the situation. I'm maximizing all my financial assets from saving to the bank, distributing to other investments and also to bitcoin.