Thanks @ashmts I'll look into going back to 4. He's nearly 12 weeks now.
I was in two minds about the en suite but that's what the breeder did. He's going back there on Friday for two weeks while we go on holiday for two weeks (I didn't really think this through) so I need to keep things consistent.
I'll be honest, I'm willing to trade off longer toilet training for uninterrupted sleep. From a mental health perspective I really need my sleep.
He's been fine with accidents in the house.
This afternoon I caught him about to have a poo inside and intercepted him and took him out, but apart from that there have been no accidents anywhere else.
The nipping seems to be worse when my son is around. He's 12 and spends a lot of time upstairs. When he comes down and we all sit on the sofa the puppy seems to go hyper and constantly nips at my feet. It's almost as if he wants my undivided attention 