That’s the promise of the “coffee nap” — a wellness hack that has exploded across social media and productivity circles. But while the theory is compelling, does science show that a coffee nap actually works better than coffee or a nap on their own? Sleep and digestive health specialists say the answer depends on more than just timing. It’s not a substitute for healthy sleepBoth specialists agree that the coffee nap should not be viewed as a cure for persistent fatigue. The coffee nap may be grounded in sound physiology, but like many health trends, its success ultimately depends on the individual.