Sleeper Markets Review
Fantasy sports giant brings prediction markets to 10 million users
Kalshi Β· Trade $25 and Get $25!
RANKPREDICTSClaim (opens in a new tab)21+ Β· T&Cs apply
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Welcome offer
We have no Sleeper offer. ProphetX's offer: Trade $50, Earn $75!
The buttons on this page open ProphetX: Trade $50, Earn $75! with code RANKPREDICTS, valid in 49 states plus D.C.
Try ProphetX instead (opens in a new tab)Kalshi Β· Trade $25 and Get $25!
RANKPREDICTS
Claim on Kalshi (opens in a new tab)
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Last checked October 27, 2026
Bottom line
Sleeper Markets is the most natural on-ramp to prediction markets for the 10 million users already on Sleeper's fantasy sports platform.
Launched in February 2026 via a partnership with Kalshi, it brings CFTC-regulated sports event contracts directly into the app where millions of fans already manage their fantasy leagues. The integration is the key differentiator: there is no new account to create, no new interface to learn, and no separate download. Fantasy sports players who follow injury reports, roster moves, and matchup data daily are exactly the kind of informed traders who have genuine edges in game-level prediction markets. The current limitation is category depth: Sleeper Markets is sports-only right now, with politics and other categories planned for later expansion.
TL;DR: Bottom line
Is Sleeper Markets worth using in 2026?
Verdict: Sleeper Markets is the most natural on-ramp to prediction markets for the 10 million users already on Sleeper's fantasy sports platform.
- Editorial score
- 75/100
- Best for
- Fantasy sports giant brings prediction markets to 10 million users
- Current offer
- New user welcome offer
Why it ranks here
- Integrated into existing Sleeper fantasy app β no new download
- 10 million existing user base
- Sports available in most states
Score Breakdown
How we scored this βScored across 5 weighted categories totaling 100 points. No affiliate relationship β score is fully independent.
75/100Total
Pros
- Integrated into existing Sleeper fantasy app β no new download
- 10 million existing user base
- Sports available in most states
- DFS users already have the analytical habits needed for PM trading
- CFTC-regulated via Kalshi DCM partnership
Cons
- Sports-only for now β no macro, politics, or entertainment
- FCM structure (one step removed from the exchange level)
- Fee schedule not prominently disclosed
- Thinner non-sports coverage vs Kalshi
Key Facts
- Regulator
- NFA-approved FCM, routes via Kalshi DCM
- Founded
- February 2026
- Fees
- FCM routing fees
- Min Deposit
- Varies
- Mobile App
- iOS & Android
- Markets
- Sports (most states)
- Headquarters
- USA
- Promo
- New user welcome offer
Our Full Sleeper Markets Review
Written by Catie Di Stefano Β· Reviewed by PredictionRanks Editorial Team Β· Last reviewed August 25, 2026
Sleeper Markets launched in February 2026 inside the existing Sleeper fantasy sports app. Sleeper is approved as an NFA-registered Futures Commission Merchant (FCM) and routes orders through KalshiEX LLC as the Designated Contract Market.
Why It Matters
Ten million existing fantasy sports users now have one-tap access to CFTC-regulated event contracts inside the app they already use. There is no separate download, no new identity verification flow, and no need to learn a new interface. Sleeper's "Team Picks" tab is the prediction market product.
This audience is unusually well-suited to prediction market trading. Fantasy players already track injury reports, lineup confirmations, weather, and matchup data β the same inputs that drive game-level prediction market pricing.
Limitations
Sleeper Markets is sports-only. There is no politics, no macro, no crypto, and no entertainment category. The FCM structure also means Sleeper is one step removed from the exchange β order routing fees apply on top of Kalshi's spread.
Welcome offer
We have no Sleeper offer. ProphetX's offer: Trade $50, Earn $75!
The buttons on this page open ProphetX: Trade $50, Earn $75! with code RANKPREDICTS, valid in 49 states plus D.C.
Try ProphetX instead (opens in a new tab)How we tested Sleeper Markets
Real account, real deposit, real trades
Every claim on this page is grounded in first-hand testing by our editorial team. We open a real account, deposit our own money, place real trades, and test withdrawals before we publish a score.
- Account opened
- Existing Sleeper fantasy account since 2022; Markets enabled March 5, 2026
- Deposit
- $100 via Apple Pay
- Trades placed
- 11 trades across NFL futures and player prop contracts
- Withdrawal tested
- April 2, 2026 β withdrew $60 to debit card
- Withdrawal speed
- Debit card withdrawal completed within 1 business day, no fee
- Devices tested
- Sleeper iOS app on iPhone 15, Android beta
What surprised us
The crossover between fantasy rosters and prediction contracts feels natural β pricing on player props is sharp because the fantasy user base brings real domain edge. Liquidity outside top NFL markets was thin during testing.
Compare Sleeper Markets withβ¦
- Sleeper Markets vs Kalshi
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- Sleeper Markets vs FanDuel Predicts
- Sleeper Markets vs Fanatics Markets
- Sleeper Markets vs OG.com
- Sleeper Markets vs Novig
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Spotted an error on this page?
We log every correction publicly. Email us with the URL and a primary source β we respond within 48 hours.
Report an errorFrequently asked questions
Do I need a new account for Sleeper Markets?
How does Sleeper Markets differ from Sleeper Picks (DFS)?
Is Sleeper Markets available in every state?
What sports can I trade on Sleeper Markets?
What fees does Sleeper Markets charge?
Can I use my fantasy balance for Team Picks?
How long do withdrawals take?
21+ Β· T&Cs apply Β· Terms
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.