Ederson has retained the Golden Glove, winning the 2020/21 award after keeping a total of 19 clean sheets.
While the Brazilian was beaten three times in a 3-2 defeat at Brighton & Hove Albion on Tuesday, Mendy was unable to capitalise and close the gap, conceding in Chelsea's 2-1 victory over Leicester City.
Ederson then saved Gylfi Sigurdsson's penalty on the way to a final-day shutout against Everton at the Etihad Stadium, before he received his Golden Glove award in addition to his Premier League winners' medal.
The bulk of Ederson's shutouts came in a phenomenal 10-week spell between late November and early February, when he conceded just one goals in 12 Premier League matches.
He has beaten his winning total from last season, when he managed 16 shutouts.
His tally of 19 clean sheets is the joint second-highest recorded in the last 13 seasons, only being eclipsed by the 21 of his countryman Alisson in 2018/19.