So I disabled Sentry mode and what a difference. I now only lost about 4Km of range over a 24 hour period at an outside temperature of -3C. Need to mention that the interior temperature of the car is 3C as it is parked in the garage.
But what app are you using to monitor this and is that periodically waking up the MY to get data, and causing a lot of that extra drain? Sometimes the act of measuring can make it worse, not letting the MY go to sleep and conserve energy. I tried TeslaFi and never signed up after the trial period was over, could never get it dialed in correctly, it was causing the extra drain I was measuring. Since I got rid of it, no more drain.
I stopped using the Stats app because it was keeping the car awake (the 12V battery monitor made the problem very obvious). The developer claimed it wasn't Stats, but no one else had my password. No idea whether it was particular to my car or an incompatibility or a temporary issue, or what. I recommend changing your password and only letting the Tesla app have it for a bit, to see if it fixes your problem. It's not enough to log out of Stats. Have to change the password.
You should expect about 1-2 rated miles per day if the car is sleeping well (asleep for about 22 hours a day).