This week, Kenneth Miller, writer and author of "Mapping the Dark; The Visionary Scientists Who Unlocked The Mysteries of Sleep," offers a practical approach for insomniacs. Instead of investing in expensive gadgets, technology, pillows or pharmaceuticals, which can have the side effect of making us even more anxious, examine the root of your sleep problem. The key to getting a good night's rest may lie in simple and cost effective solutions- like regular sleep habits, exercise or reducing caffeine.