How does the Adapt Proadjust Pillow adjust?

You add or remove the removable inserts to change the pillow's height and firmness. Fewer inserts give a lower, softer pillow; more give a higher, firmer one.

It suits sleepers who have not found a fixed pillow that fits, especially side sleepers who need more loft. Back and stomach sleepers can remove inserts to lower it.

Does the cover keep you cool?

The cover is described as breathable and cooling. It is not an active cooling pillow, so very hot sleepers may still want a cool pillowcase.

It is a queen-size pillow, sized for standard beds.

Is it worth choosing over a regular pillow?

If you have returned pillows that were too high or too flat, the adjustable loft is the main reason to pick it. If you already sleep well on a fixed pillow, the extra bulk and fiddling may not be worth it.