The Sleep Number Plush Comfort Pillow Ultimate is the only customizable down-alternative pillow we’ve ever tested, and it’s ideal for stomach sleepers who have a hard time finding the right height. (‘Down alternative’ is fluffy fill, usually polyester tried come in soft, medium, or firm densities, but the Plush Comfort Ultimate includes all three options in one pillow: It offers three sealed, removable layers of fill to help you get the best fit for your body shape. Most of our testers (even some back- and side-sleepers, who generally prefer shredded foam) found a comfortable height and enjoyed the cushioned support of the Plush Comfort Ultimate. Sleep Number does not accept returns, and the company also provides a one-year limited warranty on its pillows. Before the pandemic we recommended visiting a Sleep Number store to try this pillow in person (still the best way to tell if a pillow is right for you) because of the no-returns policy. We know that’s not possible for everyone now, so if you’d prefer a pillow with more flexible options, check out the Notable competition.

Wash your pillowcases and sheets frequently, ideally, 1x per week (here are tips for caring for bed linens)
Use pillow protectors (ideally, bed bug and dust mite proof), and wash them often (at least 1x every two weeks)
Buy high-quality pillows that can be washed or cleaned…and will not degrade from doing so. If you use pillows that can’t be washed without degrading, then replace them every 6-12 months