---
version: alpha
name: Eight Sleep
description: Light design system extracted from www.eightsleep.com (DOM-true values, Emblematic extractor 0.2.0, 2026-11-12).
colors:
  background: "#FFFFFF"
  on-surface: "#000000"
  surface: "#F7F7F7"
  on-surface-variant: "#151514"
  color-5: "#F0F0F0"
  color-6: "#FFFFFF33"
  color-7: "#1B315F"
  color-8: "#00000099"
  color-9: "#00000026"
  color-10: "#00000059"
  color-11: "#00000080"
  color-12: "#BC94714D"
  color-13: "#4F7FFF"
  color-14: "#8E8D92"
typography:
  display-lg:
    fontFamily: Oswald
    fontSize: 48.56px
    fontWeight: 400
    letterSpacing: 0.04em
  headline-md:
    fontFamily: Bethany Elingston
    fontSize: 44px
    fontWeight: 500
    lineHeight: 1.364
    letterSpacing: 0.013em
  title-md:
    fontFamily: Neue Montreal
    fontSize: 18px
    fontWeight: 500
    lineHeight: 1.27
    letterSpacing: 0.009em
  body-md:
    fontFamily: Neue Montreal
    fontSize: 15px
    fontWeight: 400
    lineHeight: 1.307
    letterSpacing: 0.001em
  body-sm:
    fontFamily: Neue Montreal
    fontSize: 12px
    fontWeight: 400
    lineHeight: 1.7
  mono-md:
    fontFamily: IBM Plex Mono
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.4
rounded:
  xs: 4px
  sm: 5px
  md: 10px
  lg: 12px
  xl: 16px
  2xl: 20px
  3xl: 24px
  full: 9999px
spacing:
  xxs: 2px
  xs: 4px
  sm: 6px
  md: 8px
  lg: 10px
  xl: 12px
  2xl: 14px
  3xl: 15px
  4xl: 16px
  5xl: 17.5px
  6xl: 20px
  7xl: 24px
  8xl: 32px
  9xl: 40px
  base: 4px
  container: 1162px
components:
  button-primary:
    backgroundColor: "{colors.background}"
    textColor: "{colors.on-surface}"
    rounded: 8px
    padding: 16px
    height: 57.2px
  button-secondary:
    backgroundColor: "{colors.on-surface}"
    textColor: "{colors.background}"
    rounded: 8px
    padding: 0px
    height: 52px
  card:
    backgroundColor: "{colors.color-6}"
    rounded: "{rounded.2xl}"
    padding: 48px
  input:
    rounded: 0px
    padding: 0px
    height: 24px
---

# Eight Sleep

> Extracted from [https://www.eightsleep.com/uk/](https://www.eightsleep.com/uk/) on 2026-11-12 by Emblematic. Every value below was read from the rendered DOM (computed styles, `document.fonts`, and the fonts Chrome actually used to paint text), not estimated from pixels. When the YAML front matter and this prose disagree, the YAML wins. Copy values from this file exactly; don't transcribe them from memory. Don't copy logos, imagery, illustrations or marketing copy.

## Overview

Eight Sleep uses a light canvas (#FFFFFF) with a palette. Type is set in **Neue Montreal** (display + body), **IBM Plex Mono** (mono), with 15px body text. Layout: 1162px container, none-detected navigation, 8 sections. Built with next.js, tailwind, vercel.

## Colors

Area-weighted from painted backgrounds, text and borders on the 1440px light capture. Roles are inferred from usage (largest background, most text, interactive fills). Every hex is an exact computed value; a role marked *unverified* is a best guess that has not passed review, so its canonical token (e.g. `primary`) is left out of the front matter.

| Token | Hex | OKLCH | Role | Share of paint | CSS variable |
|---|---|---|---|---|---|
| `background` | `#FFFFFF` | 1 0 0 | bg | 51.4% | `--color-primary-bg` |
| `on-surface` | `#000000` | 0 0 0 | text | 17.4% | `--color-primary-text` |
| `surface` | `#F7F7F7` | 0.976 0 0 | surface | 17.7% | — |
| `on-surface-variant` | `#151514` | 0.195 0.002 106.6 | muted | 0.73% | — |
| `color-5` | `#F0F0F0` | 0.955 0 0 | other | 4.4% | — |
| `color-6` | `#FFFFFF33` (on bg `#FFFFFF`) | 1 0 39 | other | 1.3% | — |
| `color-7` | `#1B315F` | 0.322 0.086 263.2 | other | 0.97% | — |
| `color-8` | `#00000099` (on bg `#666666`) | 0 0 0 | other | 1.0% | — |
| `color-9` | `#00000026` (on bg `#D9D9D9`) | 0 0 0 | other | 0.79% | — |
| `color-10` | `#00000059` (on bg `#A6A6A6`) | 0 0 0 | other | 1.5% | — |
| `color-11` | `#00000080` (on bg `#808080`) | 0 0 0 | other | 0.86% | — |
| `color-12` | `#BC94714D` (on bg `#EBDFD4`) | 0.695 0.068 62.5 | other | 0.52% | — |
| `color-13` | `#4F7FFF` | 0.631 0.197 265.6 | other | 0.39% | — |
| `color-14` | `#8E8D92` | 0.646 0.007 295.4 | other | 0.34% | — |

Sparse chromatic highlights (not accents): `#E6BE8C`.

Declared brand/accent tokens: `--color-accent` = `#4158EE` (declared, not painted on this page), `--color-accent-bg` = `#4158EE` (declared, not painted on this page), `--color-accent-soft` = `#6E9AF8` (declared, not painted on this page).

Contrast: text on background 21:1, muted text 18.27:1.

Gradients in use: `linear-gradient(in oklab, rgb(246, 246, 246) 42.75%, rgb(255, 255, 255) 100%)`; `linear-gradient(in oklab, rgb(0, 0, 0) 0px, rgb(27, 49, 95) 100%)`.

The site does not change under `prefers-color-scheme: dark`.

## Typography

| Family | Role | Weights | Share of text | Source |
|---|---|---|---|---|
| **Neue Montreal** (CSS: `NeueMontreal`) | display, body | 400, 500 | 83.5% | webfont |
| **Bethany Elingston** | other | 400, 500 | 15.5% | webfont |
| **IBM Plex Mono** | mono | 400, 500 | 0.30% | webfont |

Declared in `@font-face` but not used to paint text on this page: Oswald, Circular XX, Inter, HK Grotesk, Akkurat, Dharma Gothic. Don't treat these as the page's fonts.

Scale (px): 9, 10, 11, 12, 13, 14, 15, 16, 18, 20, 22, 28, 36, 44. Effective ratio ≈ 1.166 (close to a minor third). Body 15px at line-height 1.307; display 48.56px with tracking 0.04em. Headings are sentence case. On a 390px viewport the body is 15px and display 46.75px.

## Layout

Spacing follows a 4px base unit; the most used steps are 2, 4, 6, 8, 10, 12, 14, 15, 16, 17.5, 20, 24, 32, 40px. Sections open with about 535px of space before their first line of text. Content sits in a 1162px container on a 2-column grid. Text density 0.045 (text area / page area).

Section order (desktop). Kinds below the review threshold are shown as *section*:

1. **hero** (900px, bg #1F1712)
2. **section** — “What’s the Pod?” (1610px, bg #F7F7F7)
3. **section** (307px, bg #FFFFFF)
4. **section** (3014px, bg #FFFFFF)
5. **testimonials** — “Deep sleep, deeper cooling” (2381px, bg #FFFFFF)
6. **testimonials** — “The Pod accounts for hormonal changes in sleep temperature.” (2983px, bg #FFFFFF)
7. **testimonials** (957px, bg #F0F0F0)
8. **footer** — “Shop Friday” (2664px, bg #000000)

## Elevation & Depth

Style: elevated. Most used shadows:

- `rgba(0, 0, 0, 0.4) 0px 55.2px 110.4px -20.7px`
- `rgb(255, 255, 255) 0px 1px 0px 0px`

## Shapes

Dominant corner radius 20px; radii in use: 4px, 5px, 10px, 12px, 16px, 20px, 24px, pill. Borders: hairline (1px).

## Components

- **button-primary**: backgroundColor `#FFFFFF`, textColor `#000000`, rounded `8px`, padding `16px 32px`, height `57.2px`, fontFamily `Neue Montreal`, fontSize `18px`, fontWeight `500` (e.g. “Shop the sale”)
- **button-secondary**: backgroundColor `#000000`, textColor `#FFFFFF`, rounded `8px`, padding `0px 32px`, height `52px`, fontFamily `Neue Montreal`, fontSize `18px`, fontWeight `500` (e.g. “See how it works”)
- **card**: rounded `20px`, padding `48px`, backgroundColor `#FFFFFF33`
- **input**: rounded `0px`, height `24px`, padding `0px 0px`

## Do's and Don'ts

- Do set body copy in Neue Montreal at 15px / 1.307.
- Don't introduce font weights beyond 400, 500.
- Do keep corners at 20px for most controls, and use the larger radii only for cards and media.
- Do snap spacing to multiples of 4px.
- Don't copy this site's logos, illustrations, photography or copy; use the system, not the brand assets.

## Provenance

Spec v2, extractor 0.2.0. Render quality: **ok**. Vision pass: not run. Fields below confidence 0.7 are hedged or left out above: `color.accent_strategy`, `layout.columns`, `layout.hero`, `layout.section_count`, `sections[].kind`, `space.section_padding_px`. Full per-field provenance is in `spec.json`.