then seeing me reading from a page in my room and being aware this was a dream, I tried to roll my body out of the bed but couldn't quite work out how to do this (I wasn't sure whether I should actually physically try and do this - I was worried I'd fall out of bed and wake my wife! or whether I should just 'imagine' doing it - NyxCC do you have any advice????)
Hmm, were you looking through your own eyes or were you seeing yourself from a third person perspective? If you were already seeing though your own eyes, you might have already been in the dream or at least on your way to being fully there. I know what you mean about being afraid to physically move. When very unsure I would try to first think of the movement to see if that works. You can also try zooming on a specific object or place. With more experience you get somewhat more assurance as to whether you are in the dream or not and then can proceed with moving.

Aww, you success with the vibes has been really good so far! It reminds me to try to play around with the auto-snooze alarm on days when I'm not doing the regular wbtb.