The reason that people 40+ have puffy eyes is not lack of sleep, it's that the fat pads under your eyes start to bulge.  Solution: use an eye cream with caffeine or rosemary, or use cool compresses.  Fat - it's the bane of our existence!  Who knew that you have fat pads under your eyes?
Here are some more helpful suggestions: http://www.wikihow.com/Cure-Puffy-Eyes
 

