Best Plantar Fasciitis Night SplintThis plantar night splint is a favorite both because it works and for its comfortable fit. Another reason many consider this to be the best night splint for plantar fasciitis and Achilles tendonitis is its highly affordable price that does not in any way translate to lesser quality. (See other plantar fasciitis night splints.)This plantar fasciitis night splint holds the foot in a mild dorsiflexion, which stretches the plantar fascia while one sleeps. Keeping the foot in this position can also help when it comes to Achilles tendonitis treatment as this also provides a light stretch of the Achilles tendon and calf, preventing the tendon from tightening up. An added benefit is that it can also help with the tight calf muscles that sometimes contribute to this injury.This night splint for plantar fasciitis and Achilles tendonitis fits either foot as well as either sex. And while the orthotic is designed for use at night, it features a slip-resistant sole for trips out of bed.The night splint for plantar fascia stretch is lightweight and the design is relatively open on the front, making it comfortable to wear while sleeping. The support is secured to the foot at three locations via simple Velcro straps.The night splint also features a soft liner for added comfort.Achilles Tendonitis and Plantar Fasciitis Night SplintPlantar fasciitis refers to painful inflammation of the thick band of tissue that stretches across the bottom of one’s foot, connecting the heel to the toes and forming the arch of the foot. Achilles tendinitis is similar in that it, too, refers to painful inflammation of a soft tissue of the foot—in this case the Achilles tendon at the back of the ankle.Plantar fasciitis is caused by overloading or putting too much tension on this shock absorbing plantar fascia of the foot. Achilles tendonitis is caused by putting repetitive or intense strain on the tendon.