Anyone else dealing with ‘false start’ sleeping?

I honestly thought the sleep regression was over so I’m not sure if this is linked but for the past week my little man has been unable to stay asleep after being put down for the night. Just tonight he woke after 40 minutes, got him back to sleep, woke after 5 mins and then he did this another 2 times (less than 5 mins of sleep before waking)!! I’m currently nursing him as I’m exhausted 😩

There doesn’t seem to be much info online but I have found that it can be a result of poor napping. My son has never been a great napper and usually wakes up after 30 mins but occasionally might go to 40/50 mins. He has 4 naps a day so will usually get between 2 and 3 hours in total. He sleeps better at night and gets around 12-13 hrs (with 1-2 feeds in between).

Does anyone have anything that might help? Oh, my son CAN already put himself to sleep but really seems to be struggling with this recently. We worked hard during the regression for him to self soothe and he can but is still relying on me after the false starts.

Any tips or if you can suggest anything to help him nap longer I would be grateful!