Subject may have been discussed but could not find recent posts. Have been having problems sleeping and noticed heart rate is higher than it should be (85). Search results.
Right lateral position is proven to be most effective. Left lateral seems to trigger AFib. Problem is if you are like me you turn in your sleep.
Two studies. Lot more info on "google" if interested.
(excerpt)
Background: Because stretch of the atrial myocardium is proarrhythmic for atrial fibrillation (AF) and a left lateral body position increases atrial dimensions in humans, we hypothesized that left lateral recumbence is a frequent AF-triggering body position in AF patients.