Potty training regression

After weeks of minimal accidents at home, Nate has had four in the last 24 hours. Even with me asking he's denying he needs to go and then seconds later says I've wet myself. Sometimes it's because he's watching/playing/interested in something and doesn't want to stop. Other times he just doesn't want to go for a poo and so refuses to completely empty his bladder and then within minutes wets himself.

I'm frustrated. Not with him really but changing clothes at 4am, stripping the bed and a screaming three year old all mixed in with him not sleeping through the night (no not ever) is ever so slightly too much. 

This soon shall pass.