It's funny, I'm not usually one for a strict routine - but he sorted it all out himself. Seems I was missing his cues because I'd get dinner ready, eat and then take him off for a bath or shower and he was getting really grumpy at about 7pm but wouldn't settle down to sleep until 9-10pm, and would wake more often overnight. Then a few days ago he did a massive poonami at about 5pm (all over himself and all over me too) so I took him in for a shower as the easiest way to get cleaned up, then popped him in his pyjamas. It worked a treat so figured I'd try it again. The only catch is the 5.30am wake up.....