I wash my old cotton, non-elastic covers every couple of years & they get dried in the dryer.
Old in this case means about 35-40 years old.
Quite a bit of lint in the dryer filter, but the covers are still holding together.
One at a time fills the washer & dryer, which are normal household size.
I shake them out before washing to get the dust off.

I've washed & dried the quilted Dually cover at a laundromat - it's huge.
f t was a tent, it would have an occupancy rating of at least 12 .