There is nothing wrong with a GOOD quaslity poly batting. I used THERMORE (until they changed the 'recipe for making it) for many many years.
My 6'5" Grandson, his 6'2" brother and cousins (all guys0 HATE 80/20! Too heavy, can't scrunch it up 'good'. My grandd aughter also tends to like polys better. They are my test panel :-D . even used wool -- another no no no.
In fact, allof my family seems to prefer a think warm poly. I would think you should try it. MAke a tv watching lap quilt and see how you like the feel etc.
Let us know about how yo do.
Julie