Why Do You Feel More Tired in Spring Even After a Full Night of Sleep? Spring fatigue -- the persistent tiredness that arrives with warming weather despite adequate sleep -- is a recognized pattern in Ayurveda with a specific explanation: the accumulated Kapha of winter is liquifying and moving through the pranavaha srotas (the channels governing the flow of vital breath and prana through the body), creating a low-grade congestion that produces fatigue even when sleep hours are sufficient. The answer is not more sleep. More sleep in spring makes it worse. The answer is activation. This is one of the most counterintuitive things I tell people in spring consultations. You are tired. Your instinct is to rest more. Resting more will make you more tired. Spring fatigue is Kapha fatigue -- and K