👉 Sleep's mathematics, often referred to as sleep theory or sleep science, involves understanding the cyclical patterns and stages of sleep to optimize rest and recovery. Sleep is divided into several stages, including light sleep, deep sleep, and rapid eye movement (REM) sleep, each with distinct characteristics. The body cycles through these stages multiple times during a night's sleep, with deep sleep being the most restorative and REM sleep crucial for cognitive functions. Researchers use various metrics, such as actigraphy (movement tracking), polysomnography (detailed brain and body activity monitoring), and sleep diaries, to quantify sleep quality and duration. The goal is to balance these stages to enhance physical health, cognitive performance, and emotional well-being, often leading to recommendations like 7-9 hours of sleep per night for adults.
