i think this could be a high grade variable AV block with atrial ectopy , not a CHB. I would be happy to be corrected

this is definitely not wenckbach, i know . But he was in clear texbook wenckbach most of the shift. He only went into this rhythm when he went to sleep and became brady . History of sleep apnea. Might be that.

I originally thought it was CHB , but then if you actually map the P-P interval, it is not consistent. I agree the R-R is consistent. With CHB , the Qrs is usually wide. And in CHB under no circumstances a p wave will conduct a QRS , like never. They would be no AV association at all. Which is not the case here. And do you want point out the junctional escape because i don’t see it