» A Cure-All for Jet Lag? Try Caffeine and Naps - New York Times
Using simple caffeine to raise alertness in conjunction with naps during a trip is a winning strategy, Dr. Rosekind said. Caffeine takes 15 to 30 minutes to work, and an effective nap should be less than 45 minutes, to avoid going into the kind of deep sleep that leaves people groggy. So drinking a cup of coffee just before a nap, he said, can ensure that you will awaken with a little extra zip. The caffeine and nap working together “can actually show a performance boost greater than either one alone,” he said. “It’s not rocket science.”
