I do think you need to push his A times a bit. Looks like you'll might be transitioning to 2 naps and dropping the CN. I found A times moving very quickly between 5 & 6 months. At 5 months we went from 2 hours to 3.20 A by 6 months. Crazy.
All about the 3-2 transition- 5/6 monthsAverage A times- BOOKMARK ME! Another thing I was wondering is why his A is reduced by 15 minutes before the pm nap. Perhaps if you keep it at the same time as the morning nap, it would lengthen to 1.5 at least.
I did also find that one of the signs that we were in the 3-2 transition was that my DD started waking between BT & DF. It took a few weeks to get back on track. We basically had to push A times until naps lengthened and pull BT forward for a while to try and manage any over tiredness. A few weeks of consistently good naps and it was back to normal. I did also notice though that after that, DD would keep having these wakings in the first part of the night if she did not get the amount of day sleep she needed. I kept a log of her days and realised that anything less than 2.5 was an issue for her.
Regarding your NW. It is very normal for babies to have 1 or even 2 night feeds at that age, more so with breastfed bubs, so I wouldn't worry about it too much.
Hope that helps
