When you buy through our links, Business Insider may earn an affiliate commission. Learn morePluto customizes its pillows to your sleep preferences based off a sleep questionnaire.PlutoSleep products are rarely a one-size-fits-all experience, and for those after the best pillow, the solution may just be in customization. Adjustable pillows have exploded in popularity and help limit returns from the trial and error of which firmness or loft to seek out, but pillow specialty brand Pluto takes it even further with a pillow tailored to your needs.