Splints for nighttime use are a popular solution for plantar fasciitis and are crafted to keep the foot in a dorsiflexed position during sleep. This assists loosen the arch of the foot, tendon and calf muscles, which can lessen pain in the morning and encourage recovery. https://www.foothealthfriday.com/how-do-you-use-night-splints-for-plantar-fasciitis/