I don't really know if this was discussed before, I couldn't find it, but I strongly recommend using sleep mask every time you sleep. You wouldn't believe how fast it works.

After a few nights, you won't even need RC. It is the perfect RC in itself and a great anchor for WILD and LD.

It eliminates the fear of "Shit, what if I open my actual eyes?"

It also works as a self suggestion.

(I feel like a sales man lol)