No - CNs will tend to backfire once your LO is on 2 solid naps. And early bedtime is usually the better option. It is a PITA though as bedtime too late gives you an OT EW and the CN gives you a UT 'robbed day for night' EW
![Roll Eyes ::)](https://smiley.babywhispererforums.com/Smileys/classic/rolleyes.gif)
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Best thing to do is push that first nap as far out as you can. If your LO is staying in the cot until 6am anyway then you can often not count that to the A time. So I would try and extend that morning nap slowly to the time that you want it to be really, that will bring your pm nap back to a sensible time and fix bedtime. So it slowly to avoid OT though. If your LO starts 30 min OT napping first thing we will have to think again though.
1h 20 naps are so hard to interpret though
![Huh ???](https://smiley.babywhispererforums.com/Smileys/classic/huh.gif)
could be either a tad UT or OT - hopefully a little experimenting will work that one out for you.
I would avoid a CN and do a bedtime at 3ish hrs A if at all possible.