[11] Christopher Roberts of Under the Radar opined that "the strong production and Ware's powerhouse vocals elevate "Midnight" to a superior pop song".

[14] Michelle Geslani of Consequence of Sound wrote: "Equal parts confessional, haunting, and elegant, it finds Ware reflecting on her relationship with her husband.

"[15] Mike Wass of Idolator described the song as a "soulful anthem" and an "instantly catchy tack", as well as "a record for adults that explores the initial rush of new love and sounds very much like a throwback to another era".

[17] Sam Murphy of The Interns wrote that Ware "pushed vocally more than she ever has before" and "revealed even further the strength in her voice" with the song, and regarded it as "a classy, elegant affair".

[18] Jamie Milton DIY wrote that the song "starts off as a fragile, skeletal number with hazy ethereal synths, but soon develops into a full-on soul stomper, with confident piano chords and percussion".