Connect with a username
Sleeper leagues load with nothing installed, on desktop or phone.
SleeperSleeper Fantasy Football
The lineup optimizer for your Sleeper league
Enter your Sleeper username and HuddleWatch finds your leagues, reads your roster and scoring, and shows the strongest lineup for this week, with the projected value of every change.
7 day free trial, no card · Early Access Pass $4.99 one time · 8-day money-back · ESPN, Yahoo and Sleeper
Rashee RiceWR · KC · 18.6 season pts9.8Bench · proj
Jaylen WaddleWR · DEN · 27.9 season pts13.4Start · proj
+3.6 Jonnu SmithTE · GB · 11.2 season pts6.1Bench · proj
Tucker KraftTE · GB · 16.5 season pts8.6Start · proj
+2.5 1
Create a free account
No card required.
2
Enter your Sleeper username
Your leagues load on their own, on desktop or phone.
3
Review and approve
See every suggested swap and its value, then save the ones you want.
7 days
Free to try, no card
Every account starts with the full optimizer for a week. League tracking stays free for up to 3 leagues after that.
8 days
Money back, and you do it yourself
The Early Access Pass is not for you? Refund it yourself in Plan & billing within 8 days of payment: no reason, no ticket. After 8 days there are no refunds. Refund policy
What you get
Best lineup, change by change
Each swap shows who comes in, who goes out, the projected gain and your new team total.
Save changes to Sleeper
With the connector installed, approve a change and it is saved to your Sleeper lineup and confirmed.
Built for Superflex and guillotine
Superflex slots, elimination leagues and FAAB are handled the way your league scores them.
The HuddleWatch Connector
One free extension turns your call sheet into your control room
Chrome
Available nowOne click from the Chrome Web Store. Updates itself.
Add to ChromeMicrosoft Edge
Available nowOne click from Microsoft Edge Add-ons. Updates itself.
Get it for EdgeFirefox
Available nowOne click from Firefox Add-ons. Updates itself.
Add to FirefoxEvery league you play
Private ESPN leagues and every Yahoo league join your call sheet, next to Sleeper.
Changes sent for you
Lineups, IR moves and waiver claims go to Sleeper and Yahoo after one confirmation, and are checked on the platform before we say they landed.
AutoSwap at the inactives
Arm a backup for a questionable starter. If he is ruled out about 90 minutes before kickoff, HuddleWatch starts the backup on ESPN, Yahoo or Sleeper from its server, even with your computer off. For members.
DraftAid in the draft room
Live picks, suggestions and auto-pick inside ESPN, Yahoo and Sleeper draft rooms.
Your logins stay yours
You sign in on ESPN, Yahoo and Sleeper as usual. Passwords never reach HuddleWatch.
Free, and always current
The connector costs nothing, and the store keeps it up to date on its own.
Works in the desktop browser you use for fantasy. Phones use the call sheet without the connector. Want the newest build before the stores have it? Download it and install by hand.
Questions
Do I need to install anything for Sleeper?
No. Sleeper leagues connect by username. The connector is only needed to save lineup changes and to use DraftAid in a live Sleeper draft room.
Does it support Superflex and guillotine leagues?
Yes. The optimizer fills Superflex slots from your league settings, and guillotine leagues get a survival view of who is closest to the cut.
Is it free?
Every account starts with a 7 day free trial of the full optimizer, no card required, and keeps league tracking free for up to 3 active leagues after that. Optimizing continues with the Early Access Pass: $4.99 one time, access through June 30, 2028, no renewal, unlimited leagues. If it is not for you, refund it yourself in Plan & billing within 8 days of payment, with no need to contact us; after 8 days there are no refunds.
Ready for this week’s lineup?
7 days free, no card. Then the Early Access Pass: $4.99 one time, access through June 30, 2028, no renewal, 8-day money-back.