If you want to sleep better Think Geek offers the HiVox sleep inducing watch.

The watch uses acupressure techniques to gently massage the "sleeping golden triangle" on your left wrist.
Used 30 minutes before bedtime, you can retune and reset your biological clock and train your body to relax and sleep.
Apparently you should see improvements after about one week of use.

Think Geek sells the Sleep watch for $79.99.

The concept of this watch is different to for instance the SleepTracker watch, which wakes you when it is a good time for you. See also the axBo sleep Phase clock.