Several outlets have published lists of the best mattress protectors and toppers, with some focusing on comfort, leak-proofing, and affordability. The lists vary in length, with some featuring 10, 11, 13, or 17 top picks, and prices starting as low as $22 or $40. The recommendations are based on testing and expert guidance, with some lists catering to specific needs, such as back pain or kids' mattresses.