Hip/leg cramps and sciatic pain?

Every night I’m so miserable with the pain I’m feeling every evening from my lower back, hips and all the way down my legs. Even my toes cramp up! Any remedies? I have a body pillow but it only provides relief less than half the time. My sleep is so restless and the cramping pain is making me so uncomfortable and really whiny to my husband. He doesn’t understand at all and doesn’t know how to help.

My sciatic pain is also bothersome throughout the whole day, but especially hurts at night.