Eight-Hour Sleep Cycle Stages Infographic

A vertical educational infographic explaining a healthy eight-hour sleep cycle, laid out on a deep navy background with cream and soft lavender accents. The headline at the top reads "The Eight-Hour Sleep Cycle" in a clean grotesque sans-serif, with the subtitle "Four full cycles, roughly ninety minutes each." A central horizontal wave chart runs across the middle, plotting four repeating cycles. Labelled bands show "Awake", "REM", "Light N1", "Light N2", and "Deep N3", each color-coded with a small legend in the upper right. Tiny crescent-moon and Z-shaped icons sit at peaks; a heart icon with dotted line marks REM. Below the wave, four equal segments describe each cycle: "Cycle 1 22:30", "Cycle 2 00:00", "Cycle 3 01:30", "Cycle 4 03:00". A footer panel lists tips: "Dim lights after 21:00", "Avoid caffeine after 14:00", "Wake during light sleep". Bottom credit reads "Source: General sleep science, 2025". Flat vector style, no gradients, thin two-pixel strokes, subtle paper grain texture, balanced negative space, axis numbers in monospaced figures.

一张垂直方向的科普信息图，讲解健康的八小时睡眠周期。深海军蓝背景，米色与淡薰衣草色点缀。顶部标题 「The Eight-Hour Sleep Cycle」，副标题 「八小时睡眠周期阶段信息图」。中部是一条横向波形图，画出四个重复周期，色带分别标 「Awake」、"REM"、「REM」、「Light N1」、「Light N2」，右上角有图例。波峰处放小月牙和 Z 形图标，REM 段标心形。波形下方四个等分块写 「Deep N3」、「Cycle 1 22:30」、「Cycle 2 00:00」、「Cycle 3 01:30」。底部贴士 「Cycle 4 03:00」、「Dim lights after 21:00」、「Avoid caffeine after 14:00」。页脚 「八小时睡眠周期阶段信息图」。扁平矢量，无渐变，两像素细线，微弱纸质颗粒，留白克制。