Thanks guys - glad I'm not the only one with kids in this situation. I feel like him short changing him by not giving him more sleep but its just making both of us cranky.

Pholi I feel your pain. Hate it when you waste ages trying to get them to sleep then they sleep for 10minutes and you just think about all the things you could have been doing had you just kept them awake!

I think I might aim for two days with one sleep then offer him two sleeps the next day to catch up if he wants - for a few weeks anyway and see how we go. He's happy enough when he's awake and with the one sleep seems to get almost 3 hours sleep but with two would only get 2 hours so more sleep with one anyway. I think I just want him to stay little for a while longer - my last baby