diff --git a/rooms/rooms_manager.go b/rooms/rooms_manager.go
index 431a8ce..1158726 100644
--- a/rooms/rooms_manager.go
+++ b/rooms/rooms_manager.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"log"
 	"math/rand"
+	"time"
 
 	"github.com/redis/go-redis/v9"
 )
@@ -57,6 +58,7 @@ type RoomManager interface {
 }
 
 const roomRedisPrefix = "room"
+const roomTtl = 24 * time.Hour
 
 func roomNameToRedisId(roomName string) string {
 	return fmt.Sprintf("%s:%s", roomRedisPrefix, roomName)
@@ -155,7 +157,7 @@ func (redisRM RedisRM) Update(ctx context.Context, roomName string, f func(fromR
 
 		_, err = tx.Pipelined(ctx, func(pipe redis.Pipeliner) error {
 			log.Printf(">> about to Set %s to %v", roomName, room)
-			pipe.Set(ctx, roomKey, &room, 0)
+			pipe.Set(ctx, roomKey, &room, roomTtl)
 			return nil
 		})
 
@@ -178,6 +180,6 @@ func (redisRM RedisRM) Update(ctx context.Context, roomName string, f func(fromR
 }
 
 func (redisRM RedisRM) Save(ctx context.Context, room Room) error {
-	err := redisRM.Rdb.Set(ctx, roomNameToRedisId(room.Name), &room, 0).Err() // maybe even set expiration?
+	err := redisRM.Rdb.Set(ctx, roomNameToRedisId(room.Name), &room, roomTtl).Err()
 	return err
 }