Sundowns lost to AmaZulu over the weekend making it their second lost in one week having lost to Kaizer Chiefs in a midweek game.
The Brazilians will next face Chippa United in the last 16 of the Telkom Knockout at Sisa Dukashe Stadium on Sunday.
“Maybe it’s better because it’s away [cup tie against Chippa], we will try to get something,” Mosimane told SowetanLive.
“It’s difficult, I also [not just the players] need to get motivated. Do you think I will sleep tonight?”
Sundowns were also knocked out of the Caf Champions League in a penalty shootout by Wydad Casablanca from Morroco.