Thanks all,
Appreciate the responses and suggestions, I think since sleep is the main priority we will drop back a few rows from the galley/toilets as I'm guessing with it being a day flight people will be more active as well.
As a side note, how are AC with the dimming of shades/locking the windows on the 78? I know some airlines like to go full black out and lock them even on day flights which can be a pain!