same here, all good. Got a stake at 4:40am, reblocked at about 9am(what a waste, a lie in was costing me money!) and now coins have matured again and estimated time to reward is 13 hours.

You ARE leaving your PC on aren't you and making sure it doesnt go to sleep?
(I know its an obvious one, don't flame me if you know what you are doing, but to us noobs we've seen this a couple of times, a few of us didn't realise it has to be on and connected in order to achieve staking)