Can I play a card game with my Sleeper league?

Yes. Roster Deck turns every roster in your Sleeper league into a deck of cards rated from real weekly points, and you duel any leaguemate best of three. It is free.

Does Roster Deck need my Sleeper password?

No. Leagueborn looks up public Sleeper data with a username. It never asks for a Sleeper password and cannot set a lineup, make a move, or change your league.

Do my leaguemates need a Leagueborn account?

No. Anyone in the league can open it with a public Sleeper username. A shared duel link replays the same result for whoever opens it.

Does it work for dynasty, keeper, and redraft leagues?

Yes, for any Sleeper football league with a completed week this season. The cards use the rosters and points Sleeper already has for your league.

Is Roster Deck made by Sleeper?

Leagueborn is an independent product and is not affiliated with Sleeper, the NFL, or any fantasy sports platform.

Roster Deck · Sleeper

A card game for your Sleeper league

Roster Deck turns your Sleeper league into a card game. Every roster becomes a deck rated from the real weekly points Sleeper already has for your league, and you duel any leaguemate best of three.

Roster Deck is free. It needs a public Sleeper username, no password, and no Manager Pass. Leagueborn never asks for your Sleeper password and cannot change your league.

Read-only

What Leagueborn reads from Sleeper.

Only what the cards need, and nothing it can change.

Your league’s rosters and this week’s starters.
Completed weekly matchups, for each player’s points in your league’s scoring.
Player names, positions, NFL teams, and injury designations.

Leagueborn cannot set a lineup, make a trade, or change a setting. Data and privacy covers what is saved.

Four steps

How to start a duel from Sleeper.

Four steps from a Sleeper username to a shared result in the group chat.

Enter your Sleeper username

Leagueborn finds the public leagues attached to that username. No password, and nothing is saved.

Choose your league and team

Pick the league, then the roster that is yours. Your hand is this week’s Sleeper starters, topped up from the bench.

Tap Roster Deck and pick a leaguemate

Choose any other roster in the league. Their cards lock before you play.

Play three cards and share

Set one card on Ceiling, Form, and Floor. Win two rounds to take the duel, then send the result card to the league chat.

See how the cards are rated, or keep the week with a Sleeper fantasy football recap.

The fine print

Questions people ask.

Can I play a card game with my Sleeper league?: Yes. Roster Deck turns every roster in your Sleeper league into a deck of cards rated from real weekly points, and you duel any leaguemate best of three. It is free.
Does Roster Deck need my Sleeper password?: No. Leagueborn looks up public Sleeper data with a username. It never asks for a Sleeper password and cannot set a lineup, make a move, or change your league.
Do my leaguemates need a Leagueborn account?: No. Anyone in the league can open it with a public Sleeper username. A shared duel link replays the same result for whoever opens it.
Does it work for dynasty, keeper, and redraft leagues?: Yes, for any Sleeper football league with a completed week this season. The cards use the rosters and points Sleeper already has for your league.
Is Roster Deck made by Sleeper?: Leagueborn is an independent product and is not affiliated with Sleeper, the NFL, or any fantasy sports platform.

Bring your Sleeper league.