Abstract: A frequent method of treating Plantar Fasciitis, acute ankle sprains, Achilles tendon repairs, foot drop or other conditions is a so-called night splint which may be utilized by a patient while sleeping, or during other period of extended inactivity, to maintain a desired orientation between a patient's foot and lower leg. A night splint portion includes a thin, lightweight sole portion not suitable for walking or other weight bearing activities; however, a sturdy raised lip around the sole portion includes multiple mounting slots which temporarily mate with matching mounting tabs on a walking boot attachment which includes a sturdy weight bearing sole so that a patient may temporarily convert the night splint to a walking boot.