[shiftzor]

My normal time for lantus is 7:00pm, however i did take it at 5:00am once, i guess you could take your shot now and stay up later tonight to test, maybe even leave yourself a bit high to ensure you don’t go low from the basal overlap. Or you could give yourself super boluses at each meal (i.e. more insulin than required) and keep correcting the highs.

I have never used NPH, I understand it behaves differently to lantus, I am sure someone with more experience could give you a better answer.