Everyone is so different. After a lot of reading I landed on magnesium glycinate for its superior bioavailability. And since reading a post here about CoQ10 I switched that to Ubiquinol. Then I added 500mg taurine. My horrible bedtime postural ectopics have stopped! My heart is so calm at night now. There are studies that support this but I have three cardiologists and all they did was give me beta blockers which barely worked and caused hair loss and interrupted sleep. For what it’s worth this is my new regime along with everything else I’m doing for my heart.