Logging hours in the bunk has nothing to do with Total Time qualification. Absolutely none.
It does have lots to do with counting towards 900 total annual and 100 monthly limits. Companies across the industry are already pushing hard to achieve as close to this as possible, any move towards discounting bunk time will utterly destroy quality of life and more importantly safety. You will in effect be adding another 20-30% total flying. You would be talking about moving towards an equivalent 1200-1300 total time a year.
whilst this may give HR and Finance departments a boner, it would be completely and utterly unsafe. Most can’t sleep during their bunk stops and the junior guys usually get the early shift meaning they get no additional rest other than that being away from the flight deck.
Not sure as a 75/76 driver you would realise any of this doing mainly short/medium hail. Longer/ultra longhaul is a different ball game