Track sleep with Apple and sync to garmin?

I really like my Epix. I mean I tried to sell it, because some important missing features (compared to apple), but it's still on my wrist as of today... One of my biggest problem is sleep tracking and alarm. My apple watch is way more comfortable to sleep with and the haptic alarm on my wrist is miles ahead friendlier. Garmin's vibra is like someone kicking you out from the bed.

QUESTION: is that possible that I sleep with my apple and sync the sleep stages to generate sleep score to connect? I found nothing, possibly because how HRV is tracked differently, but I thought it worth at least to ask.

I even bought a very comfortable strap for the epix, but still, it's just too rigid for sleeping. For me.