The line on the statistics page "Sleepers killed:" should mean how many sleeping people the player killed? Then why does everyone have 0?
This parameter can say a lot about the player's reputation.

Maybe there's a fault. But I think it's rare a player is killing a sleeper.

Sleepers killed by explosions (C4, satchels, grenades etc) does not count.

The statistics for sleepers killed stopped updating around 2 wipes ago. Before that it worked accurately.