Hi Papaya,
Many, many thanks for your post. Appreciate it a lot!
Yes, STTN, since he was 6 wks old. DF at 10:30 or 11 at the latest.
I don't think there is any discomfort, no reflux. He is utterly happy when he is up, until he starts to get tired. He occasionally did 1.5 hour naps, sometimes one per day in the earlier months, never consistently.
We considered that he might be UT for Nap 1, tried extending the first A time, but he got very overtired. We tried this over a number of days. (I am very tuned to his signals due to struggling with this sleep conundrum since he was born!). He gets tired, possibly because he never stops moving when he is up.
We always respond to a poor (or no) first nap by shortening the second A time (sorry, I didn't post the details of this as it would have been a very long post). So sometimes he will be up from Nap 1 (or No Nap) and be back in bed very soon afterwards. I do stick with the 4 hour feeding schedule though, because if the feeds are brought too close together (in response to poor naps) he doesn't feed well. Of course there is some flexibility here, perhaps, feeding 30 mins early on the very tricky days.
His temperament is that he is very calm, content, placid, but has major difficulty switching off to sleep. Sometimes, he will even be in his cot, chatting, but not get to sleep. That sounds like being UT, however, he then displays signs of tiredness for the rest of the day and even if we try to catch a window for the second nap, no luck. PUPD may be too stimulating for him, but I have no idea what else to try at this stage.
We may try extending the A time again, a lot can change in a week or so with these LOs!
There is a lot of info here, so in summary: he has self settling abilities, as he sleeps well during the night (mostly!), he is just chronic for naps during the day, but he needs them, when we don't battle to get him some sleep he is unhappy, irritable, etc etc. Sh-pat, PUPD, tweaking the schedule - nothing has worked to get him to nap consistently. Maybe someone has tried something crazy and it worked?? All suggestions welcome!
It is great to get your replies, as it is making us think / re-think everything and fresh eyes might be the key here.
Many thanks.