How do I get my 9 month lab to sleep through the night? Every night without fail she wakes me up at 3am for a poo.
She's fed at 7am and again at 4pm and has her big walk in the morning (about an hour mostly off lead in fields messing around) and another pavement walk in the evening (about 30-40 mins). She has her last wee break at about 10/10.30pm.
I've tried making her tea earlier (she used to be fed at 6pm) and also tried a more 'interesting' walk in the evening but tbh walking through fields in the pitch black creeps me out 
Is she just doing it because she's used to it? Any ideas on how I can get a full nights sleep??