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Simba Sleep

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Mattress technology for improved rest and wellness

London, United KingdomFounded 2015eCommerce & Marketplaces
Valuation $25–50M Last recorded · 2019
Revenue $100–500M Latest reported FY
Headcount <100 Current team size
Total funding $100–500M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Simba Sleep and the history behind them.

About Simba Sleep

Simba Sleep is a technology-led mattress and bedding company dedicated to enhancing human well-being through advanced engineering. Founded in London, the company sought to move beyond traditional sprung or pure foam mattresses by developing a proprietary hybrid model that integrates cooling foam layers with thousands of aerocoil springs. Its mission is centered on providing a data-driven approach to sleep, utilizing extensive user feedback and scientific research to continuously iterate on its product designs.

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The company operates primarily through a direct-to-consumer eCommerce model, complemented by strategic wholesale partnerships with major European retailers such as John Lewis and Harrods. Simba targets a broad segment of health-conscious consumers and families who prioritize sleep hygiene and quality. Revenue is generated through the sale of its flagship mattresses, alongside a growing ecosystem of sleep products including pillows, temperature-regulating duvets, and adjustable bed frames.

Simba differentiates itself through a commitment to circular economy principles and sustainability. It has implemented a comprehensive mattress recycling program and focuses on using high-quality, recyclable materials in its production process to minimize environmental impact. By leveraging patented hybrid technology and a sophisticated logistics network, the company maintains a competitive advantage in the high-growth sleep technology market, balancing rapid delivery with premium product performance.

Source: Dealroom company data

At a glance

Founded
2015
Headquarters
London, United Kingdom
Sector
eCommerce & Marketplaces
Power Law
Thoroughbred$100M+ revenue

Investors

15 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed2 investors entered at this stage

  • Angel Investment Network
  • YYX Capital

Series A11 investors entered at this stage

  • Sir John Hegarty
  • Nigel Wray
  • Adam Balon
  • SPARK Ventures
  • JamJar Investments
  • Richard Reed
  • The Garage Soho
  • Jon Wright
  • Atami Capital
  • Lombard Odier
  • Wharton Asset Management

Series B and later2 investors entered at this stage

Team profiled 20 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
5 countries with
team presence
🇬🇧 United Kingdom92.5%
🇺🇸 United States1.9%
🇵🇱 Poland1.9%
🇫🇷 France1.9%
🇦🇪 United Arab Emirates1.9%
5 countries shown
Web traffic by country
600K monthly visits
across markets
🇬🇧 United Kingdom84.8%
🇮🇩 Indonesia5.9%
🇫🇷 France1.3%
🇺🇸 United States1%
🇧🇪 Belgium0.8%
Top 5 markets shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Simba Sleep on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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