The bedding business doesn’t comply with standardized sizes—the scale of a king-size comforter and king-size cover cowl will often range by just a few inches from model to model. In 2016 I examined every cover cowl with a Macy’s Resort Assortment Primaloft king comforter that measured 96 inches by 101 inches, and in 2018 we used a Pacific Coast European Down king comforter, which measured 98 inches by 108 inches. All the king-size cover covers I’ve tried match these king-size duvets, and stuffed them out properly once I made the mattress. Nonetheless, as an lively sleeper, I typically seen the cover pulling away from the perimeters inside its cowl, even when utilizing nook ties. A bigger, fluffier cover helped curb quite a lot of this motion in our 2018 testing. It’s not an ideal answer, however in the event you are likely to get tangled in your cover cowl with no cover in sight, attempt searching for a canopy that’s barely smaller than your comforter, so there’s much less likelihood it is going to shift inside.
