You may just need to keep pushing that nap to 12 noon Ish, the earlier the nap often the earlier the WU.
We did keep our morning micro nap until about 20 months often I thought hed never nap at lunch but think key was not going too late and just doing it after lunch at 12/12.30 ish.
How was last night, sorry been busy x
Cbabyj have you started a thread of your own, often gets you the best response x