That's a personal decision of course.
When this was at its worst I would get increased tinnitus (a sort of woosh) when bending over. That is rare now.
The biggest red flag was when going on haunches: I would get almost immediately noticeably dizzier for up to 24 hours. I was clearly increasing head pressure beyond what the wound would take.
That said maybe it's OK for it to leak and release pressure? But intuitively it suggests it will have to reheal again. And I believe the longer it leaks the longer you have over pressure: the perilymph leak caused the hydrops in the first place.
As a precaution I've also stopped using headphones for the time being.
It's a very personal decision.
Btw my plan was to use the pillows and the wedge. If vertigo continues I will try this.