Hi, my husband is the same. The sedation didn’t work, he was fully awake and the procedure was cut short. He is now waiting to get an appointment for GA. the failed procedure was in February, it could be as late as end of September for the GA appointment. Are you in the UK? If so, you could discuss this option with the surgeon.

I am confused about this issue too.
I find the procedure very unpleasant and lengthy. (22 biopsies the last time!) An acquaintance who also has an endoscopy has sedation and does not remember the procedure taking place. I asked for sedation once but apart from making my eyes light sensitive for a while it did nothing. In fact it was worse because they omitted the throat spray. Next time I just went for it without. I have since discovered that there are two levels of sedation and my friend had 'deep sedation' where the amount of valium (?) used is higher and you are not really aware of anything. I think this deep sedation requires the presence of an anaesthetist so is not always offered.
I am due my next scope in three months and don't know what to ask for but light sedation is not a lot of help so will probably just put up with it.