The album version of the song features additional verses from American rapper J. Cole, and was used in the accompanying music video which premiered on July 24, 2015.

The album version featuring J. Cole enabled it to re-enter the Hot 100 with a new peak position at number 63, while also topping the US Adult R&B Songs chart.

[1] At midnight on May 16, 2015, Jackson announced plans to release a new album and to embark on a world concert tour, stating "I promised you would hear it from my lips.

[9] Producer Jimmy Jam later recalled in an interview with Entertainment Weekly that "No Sleeep" almost did not make it into the final track list for Unbreakable.

Months went by before the initial track was discovered by Lewis and Jackson, at which point Jam recalled: "Terry asked me for a melody, and it evolved from there.

[9] According to The Guardian, "On first listen it seems to be missing any discernible hooks, but slowly the chorus starts to dig its claws in, while the sudden vocal shift from soft coo to full-bodied yearning in the middle eight is a hairs on the back of the neck moment.

"[15] Vibe remarked: "The mellow soundscape sounds like Janet literally just lit some incense, sat down on the studio floor and let the words flow from her mouth without a second thought.

"[17] Michael Craigg from The Guardian gave a positive review, calling the song a "slowly unfurling sex jam" and also pointed out that while "the general consensus among pop stars nowadays is that all singles must be at least 124 BPM, Janet's always done things slightly differently," adding that any song which "manages to incorporate the phrase 'fait accompli' into its chorus is on to something.

"[16] Aisha Harris of Slate states that "Jackson’s soft, cooing vocals ... are left largely untouched, the production uncluttered" and favorably compared the song to material from the singer's 1997 studio album The Velvet Rope.

[18] Similarly, Pitchfork Media's Meaghan Garvey described the song's quiet storm appeal as "envok[ing] her richest and most breathtaking era: the mid-'90s stretch including 1993’s super-sensual janet., and especially 1997’s inimitable and deeply personal classic, The Velvet Rope.

[19] Lewis Corner and Amy Davidson state that her "undeniably distinct and cooing vocal tone glides perfectly over the effortlessly seductive soundscape[.

Berman notes that background images of the singer's childhood photos with father Joe Jackson along with certain word choices from J. Cole's verses run contrary to the song's original subject matter, but concludes that "eccentricities aside, it’s a more than welcome return.