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Simba Sleep

eCommerce & Marketplaces · London, United Kingdom · Founded 2015

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. 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. Keywords: sleep tech, hybrid mattress, direct-to-consumer, memory foam, bedding, consumer goods, e-commerce, home living, sustainability, wellness, aerocoil springs, London startup.

Valuation $0–100M
Revenue $100–500M
Headcount <100
Total funding $100–500M
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Simba Sleep and the history behind them.

Investors

15 investors on Simba Sleep's cap table

Sourced from Dealroom's funding history. Investor profile links are shown where available.

Seed 2 investors entered at this stage
Angel Investment Network
YYX Capital
Series A 11 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+ 2 investors entered at this stage
Janus Henderson Investors
Cartesian Capital Group

Global footprint

Where Simba Sleep has talent and traffic

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

Talent graph

The shape of Simba Sleep's talent

Dealroom maps Simba Sleep's team person by person — pinpointing the standout operators and scoring them across the six dimensions investors underwrite. The counts and shape below are a public preview; the named individuals and exact scores live in the platform.

20 team members profilednamed & role-tagged by Dealroom
76 employeestotal headcount
4 executives & foundersidentified by name
DimensionScore
AI Talent Score hidden — book a demo
Engineering Score hidden — book a demo
Product Score hidden — book a demo
Go-to-market Score hidden — book a demo
Leadership Score hidden — book a demo
Research Score hidden — book a demo
Book a demo to unlock Simba Sleep's exact scores

Source: Dealroom Talent Intelligence. Public profiles show counts and the team's shape only — request a demo for the named individuals, per-person seniority and tenure, and team benchmarks vs peers.

Market sentiment

What the market is saying about Simba Sleep

An AI-synthesized read of the highest-engagement posts about Simba Sleep on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

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

See Simba Sleep on the full Dealroom platform

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