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Sleep Architecture Hypnogram

Full-night hypnogram across five stages (W/N1/N2/N3/REM): deep sleep front-loaded, REM expands toward morning, GH pulse in first N3.

A free, animated sleep architecture hypnogram you can read here or embed on any website, from Scrollchart.

Sleep Architecture Hypnogram

Sleep Architecture

A hypnogram plots sleep stage (Awake, REM, N1 light NREM, N2 intermediate, N3 deep slow-wave) on the Y-axis against clock time across a typical 8-hour night. The trace steps between five lanes. The first half of the night is dominated by deep N3 sleep, with the largest growth hormone pulse occurring in the first N3 block. Later cycles progressively shorten N3 and lengthen REM bouts, which reach their maximum duration (40-45 min) in the 4th and 5th cycles of the night. Cycle boundaries and the REM-lengthening pattern are labeled.

Good for

  • Articles in the health science category
  • Editorial pages where a quick visual replaces a wall of text
  • Content-marketing posts that need a clean, branded illustration

Source & accuracy

This sleep architecture hypnogram is an editorial illustration built to represent the concept accurately. Where it shows figures, they are typical or representative values chosen to make the relationship clear, not a single underlying dataset. The diagram and its explainer are reviewed and maintained centrally, and updated over time as understanding improves.

Embed this diagram

Add this animated sleep architecture hypnogram to your own site. Copy one line of HTML, or use the embed builder for theme and sizing options.

Reference

What this is
A free, embeddable, animated sleep architecture hypnogram for any website.
Who uses it
Bloggers, Content marketers, Educators.
How to embed
Copy one line of HTML. No signup. No watermark. Works in WordPress, Webflow, Ghost, Substack, plain HTML.
File size
iframe embed, ~80 KB gzipped (loads on demand, does not block your page paint).
License
Free forever. Editorial explainer text included; updated centrally over time.
URL
scrollchart.com/diagram/sleep-architecture

Embed format options

Copy the universal HTML snippet, the WordPress shortcode, or an iframe fallback - see the WordPress plugin page for details. Any format keeps the same Core Web Vitals profile and the same explainer text.

Embed snippet 
<div data-scrollchart="sleep-architecture" data-scrollchart-v="1"></div>
<script src="https://scrollchart.com/embed.js" async></script>

By embedding, you acknowledge the diagram and explainer text are served from scrollchart.com and may be updated from time to time to reflect new research or to link to relevant sources within the explainer.

Frequently asked questions

Where can I get a free animated "Sleep Architecture Hypnogram" for my website?
Scrollchart provides "Sleep Architecture Hypnogram" as a free, embeddable animated diagram you can add to any website with one line of HTML. No signup is required and there is no watermark. The diagram and its explainer text are served from scrollchart.com, so the embed stays current without any maintenance on your end.
How do I embed a sleep architecture hypnogram diagram in a health or wellness blog?
Copy the HTML snippet from the Scrollchart diagram page and paste it into any post or page in your CMS. It works in WordPress, Webflow, Ghost, Substack, and plain HTML without any plugin or account. The diagram renders as animated SVG directly in your page, so search engines can index the accompanying explainer text.
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