Last week I was perusing the automotive Dept in my neighborhood Walmart = and I came upon a possible solution to falling asleep at the wheel - not = perfect mind you but worth a try.... It is called Driver's Alert I = think it was under $10.00 It is a device that you put behind your ear = and when your head drops it lets out an ear piercing screech that will = wake the dead. The problem is adjusting the earpiece so it will go off = at the right angle. I haven't had occasion to use it yet but I will = when I am in one of my twilight times. Donna Smooth seas do not make great sailors.