Sleep is not just about quantity. Sleep quality — the architecture of your sleep cycles — directly determines how much energy you have the next day.
Deep sleep (NREM Stage 3) is when growth hormone peaks, tissue repair accelerates and energy stores replenish. REM sleep consolidates memory and emotional regulation. Skipping either stage leaves you fatigued regardless of total hours.
Alcohol (fragments sleep architecture), blue light before bed (suppresses melatonin), caffeine after 2pm (blocks adenosine for 6+ hours), irregular schedules (disrupts circadian rhythm) and stress (elevates cortisol).
Ashwagandha in SodaPeak has been shown in clinical trials to improve sleep quality and reduce sleep onset latency through cortisol regulation. Lower cortisol at bedtime means easier and deeper sleep.