Startup profile · funding coverage
Sleeper funding, valuation and investors
Social fantasy sports and esports app with chat-native leagues and mock drafts.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series C
$40M · September 2021
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$60M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
growth · Las Vegas, NV
Investors in latest funding
Lead: Andreessen Horowitz
Overview
Sleeper is a mobile-first fantasy sports platform known for modern UX and built-in league chat that drove viral adoption among younger fantasy players. The app supports NFL, NBA, and other sports leagues, plus esports drafts and pick'em games. Founded in 2015, Sleeper raised a General Catalyst-led Series A, a $20M Series B led by Andreessen Horowitz in May 2020, and a $40M Series C led by a16z in September 2021. The company monetizes through premium features and partnerships while keeping core league management free. Sleeper competes with ESPN, Yahoo, and DraftKings fantasy products but wins on social engagement and mobile-native design.
Why Sleeper is interesting
Sleeper's in-league chat drove organic growth past Yahoo and ESPN — a16z led Series B and C as the product expanded into esports and daily games.
Product & use cases
Sleeper provides fantasy league management, live drafts, in-app chat, scoreboards, and esports/pick'em games — optimized for friend groups who want a social layer traditional fantasy apps lack.
- Friend-group fantasy football leagues with integrated chat
- Esports and pick'em contests alongside traditional sports
- Mobile-first draft nights and waiver-wire management
Key facts
- Series C (Sep 2021): $40M led by a16z (Sleeper blog)
- Series B (May 2020): $20M led by a16z; Series A General Catalyst-led (TechCrunch)
- Known for in-league chat driving organic user growth
- Expanded from fantasy football into esports drafts and pick'em games
Funding history (newest first)
Series C
2021-09 $40MSource: https://sleeper.com/blog/fantasy-sports-app-sleeper-raises-40-million-series-c/
Series B
2020-05 $20MSource: https://techcrunch.com/2020/05/27/fantasy-sports-app-sleeper-raises-20m/
Investors in our directory
Funds linked from Sleeper's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: Chat-native leagues created organic viral loops — users recruit friends inside the app rather than via external group texts.
Fantasy sports is mature, but Sleeper captured younger cohorts through product polish and social features. Retention depends on continuing to lead UX as incumbents copy chat and mobile improvements.
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ESPN Fantasy incumbent
Massive brand and distribution; dated mobile UX versus Sleeper.
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Yahoo Fantasy incumbent
Legacy user base; less social-native design.
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DraftKings adjacent
DFS and sportsbook focus; overlaps on fantasy audience but different monetization.
Notable stories
- Sleeper grew by treating fantasy leagues like group chats — a16z doubled down with back-to-back B and C rounds as engagement metrics outpaced legacy platforms (Sleeper blog, 2021).
Industries
Related funding articles
Venture Capital Tracker pieces that cover Sleeper's financing or category context.
FAQs about Sleeper
Practical answers founders, operators, and investors typically search for.
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