As any insomniac (including myself!) can tell you, lack of sleep can thwart the best-laid plans for good health and good fitness. A perfect gift for the under-rested runner on your list is the NightWave Sleep Assistant. NIghtWave projects a soft blue light in your bedroom, allowing you to synchronize your breathing with the gently pulsing light and slip into a deeply relaxed state. Think of it as a personal sleep coach in the privacy of your own bedroom. There’s even a travel version to help keep jet lag demons at bay.