sleeplessness, internal sole foot itch

My husband has trouble staying asleep. He falls asleep fine, but about 3-4 hours later he is wide awake. He drives 4 days a week approximately 400 - 500 miles a day. He gets irritated, angry most of the time. What can we do? Sleep aides DO NOT work. OTA nor prescription, nothing works.
Problem #2: At random, the inside of the bottom of his foot starts itching and scratching does not help. I have tried epsom salt soaks and that seems to relieve it for a while. It has even started in the middle of the night waking him. Again not being able to get back to sleep. Help!!!!!!!!
Thank you
Amy