Firstly, well done for enrolling in the Moonoa program, working on everything that can affect your sleep, and obtaining satisfactory results.
But now you've relapsed, without knowing why: you've not changed anything, you're not more stressed, there aren't any specific events that could have triggered it, etc.
Through this program, you change habits that have been present for months, even years. Once you put your finger on what's disturbing your sleep, you can quickly improve it. But there are several things to take into account:
1/ You identified one factor and saw an improvement, but it may not be the only one(s) that was affecting your sleep. That's why it's not holding up. Do you have other habits that need some work?
2/ The new habits are still recent (and not real habits yet). They're still a bit fragile, as is your new sleep. Small variations from time to time are normal. That's why the program lasts 13 weeks - you need time to consolidate everything.
Remember: Even if your sleep is a little worse these days, that doesn't mean you're back to square one. By following this program, you know what to avoid when you have bad nights. You learn how to manage AND prevent them. So don't worry, you have the keys to ensure that this is just a phase and not a return to the vicious cycle of a sleep disorder.
If you still have any doubts, write to your coach to discuss all of this.