Optimizing sleep quality is the single most potent, non-negotiable recovery tool available to an endurance cyclist. While nutrition and structured training are critical, the physiological repair of muscle tissue and the release of growth hormone rely heavily on the slow-wave deep sleep found in stages 3 and 4.
Achieving this state often requires strict sleep hygiene, including blue-light elimination, blackout darkness, and maintaining a cool room temperature between 16 and 19 degrees Celsius. Conversely, scheduling high-intensity interval workouts late in the evening can hinder sleep onset by preventing the necessary drop in core body temperature.
For those who train in the evenings, how do you manage your cooling and wind-down routine to ensure you actually hit those deep sleep stages?