To me the thought of eternal sleep is something that is so incredibly beautiful, there is nothing more ideal than being able to peacefully pass away and sleep for all eternity with this existence finally being long forgotten about. For me life in itself is the true problem that can only be solved by death, I certainly see non existence as being ideal it's the complete absence of everything, those who no longer exist are incapable of suffering in this futile process where we are only destined to be tortured by old age. Death isn't just not bad, to me eternal nothingness is perfection as of course nobody can be harmed by not existing.