well i personally wouldnt do too early but thats just me
Do you think he is OT? i know the norm is OT on that length of nap but not us and maybe not Oliver? what makes you think he is OT? behaviour...whats that like? what about teeth? where is he on that?
i think it might be worth deciding on some times and sticking with them for a week and see how that works.
Did you try the lights on a timer?
i know the main thought here is OT and im not dissagreeing with this but just looking at another angle.when we had messing about at bedtime is was behavioural..lots of calling back,messing about,when i got firmer it dissapeared.just something to think about.Again EW with D were habit/ behavioural and the lights stopped it straightaway.
im not saying this is what oliver is doing but just giving my thoughts as you asked!!
just for the record,been as they are so alike with sleep,tho not the NW, we do 7am,12.30 nap which lasts from 1 hr to 1.5 tho usually somewhere in the middle
if we get a 1.15 or less we do a 7pm bedtime or a 7.30 if its a better nap.set times were another thing that sorted us out.
just something to chew on!!!