Fear of dying because of my views

[Reforged]

Have you ever had a dreamless sleep? Your eyes shut, you drift off and then... nothing. But it isn't frightening or disconcerting, its soothing. Your muscles relax, you feel the last of your thoughts disappear in a haze of calm, you slip deep into a void where the thought processes that make you you simply stop and for a short while you are free. Imagine never waking up from that, imagine that the process by which you spring back to life and go on with your day just doesn't happen.
Would that be so terrible?

Yes.

I like living. Sorry, but I do.

I liken dying to being unconscious, say under anaesthetic - you can be under for hours (and I suppose days, weeks, years) - but it's as simple as you drift off, then instantly come around - nothing has happened in the timeframe...but at least you wake up to contemplate it.

Living is fine and I'd rather it didn't end but I'm just asking if death is so terrible. We didn't exist countless billions of years before we did yet we bare no trauma from it.
Our lives are brief interludes in a timeless void, when that interlude is over should we really be fearful to return?