Many people wake up tired even after a full night’s sleep — but the reason often isn’t the number of hours you sleep. In this episode, Aiden and Liam explain how your body moves through natural 90-minute sleep cycles, and why waking up in the middle of a deep stage can leave you feeling drained and unfocused.

They explore how the Sleep Time Calculator concept works by helping you wake up at the end of a natural cycle, when your brain is already close to waking. By choosing sleep and wake times that align with these cycles, your mornings become lighter, your mood stays stable, and your energy lasts longer throughout the day.

This episode breaks down the science in simple terms so you can make small timing adjustments that lead to bi ...