My ds is seven and soils. He also still wets the bed every night. Right through night pants and pajamas and the sheet.
He used to wet everyday during reception. And during year one he would 'leak'. He still does this but either doesn't notice or doesn't care.we constantly tell him to change his pants. He will also quite happily stay in his night pants until we tell him to change. He will often soil these too.
For the night wetting we have tried lifting, alarms and I think the next step is medication. :( but I am not sure as when we went to the gp for his alarm review appointment she was more concerned about the soiling and him saying he can't feel it, so referred him to the quick access clinic.
The clinic said there was no issue with the nerve endings. We now have to do two days of monitored fluid in and out before a review appointment in four months. She also wants to refer him for counselling for the soiling 
as there is nothing wrong with the nerves.
But we have helped him wipe, regularly tell him off, encourage him to go, to wipe propyl, have tried ignoring it. Nothing seems to work.
So, any ideas? For a complete picture his brother Has ADHD and possible dx for asd. (Waiting for multi discipline team appointment). We thought he might have been dyslexic in year one but school did one of those 'unnamed child' multi meetings with someone who came into the school and they said no. But he can't even say the months of the year in order, struggles with the days of the week, can't say the alphabet etc but his reading is getting better.
Anyone have any advice on what could be going on here? Does any of it add up to anything as a wider picture that I should look at?
Happy to answer questions if you need a wider idea of what he is like.