Marking the turns so that the player knows how many saves to make? This is design elegance, but I'd add one more touch: damage caused during this twilight zone must be used as a penalty to each death save.Don't make death saving throws during the combat.
Have the character mark how many turns they are unconscious before they are attended to. THEN, when someone attends to them, roll all of the saves.
I can't really critique yours unless I know why you hate death saves. Do you hate death spirals? Hate your PCs? Hate rules? Tell me about your parents. /therapySo I hate death saves and want death to occur at 0 hp. Propose your solutions. Critique mine. Have fun.
There's no easy way for a player to lose a character in which he's heavily vested. It's harder for inexperienced players, which, unfortunately,
happens most. I have to agree with the OP, somewhat, as in "Death Saves" not only prolong the agony, but also tend to save weak PCs. The House Rules of each game should properly stipulate the active procedure for dying.