Ds is 4 mo. seems to have a good five hour deep sleep. When he was going to bed at 10/11pm this meant I got a good chunk of sleep. Now he is going to bed at 7pm ish means i get a couple of hours am before he wakes and then once he goes back to sleep post feed it is quite fitful. So early nights better for him and worse for me (other than dh and I now have evenings back). Any advice other than get off mumsnet and go to sleep early?