Oh right, i looked it up briefly and managed to turn it off on the tv since its only turning the tv back when ive gone to bed, its also turning the volume right up when ive turned it right down just in case it comes back on later on in the night like it keeps doing!
Last night i even switched HDMI socket to a different one and put on MUTE on both the box and the tv so that it wouldnt wake me but it switched them all back, hopefully this will have sorted the problem, thanks for the information, very much appreciated!