Sleeper complaint?
Make it sting!
We help resolve your complaint! Our AI cyber hornets are trained to help you write an effective Sleeper complaint letter, and make sure your case gets taken seriously.
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Sleeper customer service
- Customer service email
- support@sleeper.app
- Customer support
- support.sleeper.com
- Corporate office
- Blitz Studios, Inc., 548 Market Street, PMB 95988, San Francisco, CA 94104, United States
- Twitter / X
- @SleeperHQ
- Social media
Contact details checked on 21 Oct 2026
Why use our complaint platform?
Written in minutes
We help you write an effective complaint in minutes. Our AI cyber hornets are trained on thousands of complaint letters that actually worked.
We will make some noise!
Your complaint gets the attention it deserves. Our cyber hornets could post it on social media, send it by printed letter or use other escalation tools at our disposal.
Your personal case coach
Our AI models open a case file and keep coaching after you file: what to reply, when to push, and how to escalate if nothing happens.
You are not alone
Join 73,608 consumers who refused to be ignored. Our community is there for advice while you chase your resolution.
Is Sleeper legit?
LegitBest known for free fantasy leagues, Sleeper is a genuine app, but its paid Picks games come with money rules worth knowing before you deposit. Cash added with a promo code must be used on entries before you can withdraw it, and nothing pays out until your identity and Social Security number are verified.
What we checked
- A brand of Blitz Studios, Inc.
- Registered broker runs its prediction markets
- Ratings on other review websites: 4.5/5
Watch out for
- Paid Picks entries blocked because you are in a state Sleeper excludes, such as New York or Michigan.
- A withdrawal refused because the bank account is in someone else's name or has a zero balance.
- A deposit match that takes up to 30 days to arrive, or is held for months during a review.
Winnings stuck in your Sleeper balance?
We help you write it, it gets its own public page, and you can have it sent to Sleeper as a formal letter.
File a Sleeper complaintCommon customer service questions about Sleeper
How do I file a complaint about Sleeper?
Do you have a dispute or a bad customer experience with Sleeper? Report it through our website to maximize the chance of getting it resolved.
We help you write an effective complaint in minutes. Our AI models are trained on thousands of effective complaint letters. Then we push it through emails, social media, paper complaint letters and other tools at our disposal. And you are not alone: our helpful community is there for advice.
How do I contact Sleeper customer service?
Sleeper customer service is reached by email at support@sleeper.app and through the Sleeper help center, linked in the contact details at the top of this page; Sleeper's terms name that email address as the place to raise any concern. Write from the email on your Sleeper account and include your username, the date and amount of any deposit, withdrawal or contest in question, and screenshots of your wallet balance or any message on screen.
Withdrawal held or a pick settled the wrong way? Start your complaint here as well, and we push it out to Sleeper by email, social media and printed letters.
Why is my Sleeper withdrawal pending?
A Sleeper withdrawal usually stays pending while Sleeper checks something on the account: identity verification, a recent deposit that has not cleared, the payment method the money goes back to, or where you were when you played. Promotional credit on apps like Sleeper usually cannot be withdrawn as cash, so check whether the amount you asked for includes any bonus.
Write to Sleeper support from your account email with the amount, the date of the request and the payment method, and ask which check is holding it and which document, if any, Sleeper still needs from you. Screenshot the wallet and the withdrawal status each time you look, and keep copies of anything you upload.
Withdrawal stuck at pending? We help you write the complaint in minutes, with every date and amount set out the way a payments team reads it.
Why is my Sleeper account locked?
Sleeper asks players to verify their identity again to unlock an account in a few situations its help center describes, such as a long period without activity or reactivating an account that was deleted. Real-money play also depends on age and location: Sleeper Picks is for players aged 18 and over (19 in Alabama and Nebraska, 21 in Massachusetts and Virginia), only in the states where it is offered, so a location check can block a deposit or an entry.
Ask Sleeper in writing why the account is locked, which rule it applied, and what happens to any balance in the wallet while the lock stays in place. Keep the lock message, your verification emails and a note of where you were each time you played.
Can I report Sleeper to the CFTC?
Yes, for Sleeper's prediction markets: the Commodity Futures Trading Commission (CFTC) in the United States covers the event contracts traded through Sleeper Markets LLC, though not Sleeper's fantasy leagues or Sleeper Picks contests. Sleeper's own terms point customers to its support team first, so keep a record of every message and reference.
Event contract settled the wrong way? Bring it through our complaint process: our trained AI opens a case for you and keeps coaching you on what to reply and when to push again.
What do people complain about most at Sleeper?
Nothing has been reported about Sleeper here yet. Our research shows what typically goes wrong at real-money fantasy and prediction apps: withdrawals held while identity or location is checked, accounts locked until the player verifies again, deposits charged but missing from the wallet, picks or contracts settled in a way the player disputes, and promotional credit that cannot be cashed out.
Had a withdrawal held or a pick settled against you? Be the first to report it: your case opens the record the next Sleeper player checks, and other players with the same problem can back it up.
What happens after I submit my complaint?
Your complaint gets its own public page on Complain.biz and we get to work: we bring it to the attention of Sleeper through emails, social media, paper complaint letters and other tools at our disposal.
And we stay with it after you file. Our trained AI opens a case file for you and keeps coaching: what to reply, when to push again, and how to escalate if nothing happens.
Can other consumers help me with my Sleeper complaint?
Yes. We have an active community of consumers, and complaints here are public: people who ran into the same problem with Sleeper can give you advice or back you up with their own story. A complaint with a community behind it is much harder to overlook.
Sleeper complaints
Helpful experiences shared by Sleeper customers. Search, discuss and connect with other people in our community.
Sleeper complaints per month
Dec 2025 - Nov 2026Complaints filed on Complain.biz about Sleeper in each of the last twelve months.
No complaints about Sleeper yet. Yours can be the first.
How Sleeper compares
Sleeper customer service compared to others in the Gambling category.
| Company | Complaints | Biggest problem |
|---|---|---|
| FireKirin | 708 complaints | Winnings kept or never paid 68% |
| FanDuel | 124 complaints | Winnings held after suspension 35% |
| Ruby Slots | 42 complaints | Winnings not paid out 98% |
| Jumba Bet | 17 complaints | Withdrawals delayed or cut short 76% |
| Sleeper (this page) | 0 complaints | No complaints yet |
| CT Lottery | 0 complaints | No complaints yet |