"One More Sleep" is a song recorded by British singer Leona Lewis for her first Christmas album and fourth studio album, Christmas, with Love (2013). It was written by Lewis in collaboration with Richard "Biff" Stannard, Iain James, Jez Ashurst and Bradford Ellis, and produced by Richard "Biff" Stannard. It was released in the United States on 5 November, in Ireland the United Kingdom on 29 November and many parts of Europe on 2 December.

In February 2013, a representative from Syco Music, Lewis' record label, announced that she was about to start writing and recording material "imminently" for her fourth studio album, and that it would be released in late 2013. The news came after Lewis announced that she had parted ways from Modest! Management, the management team who had represented her since she won the third series of The X Factor in 2006. Various media outlets speculated that this was due to the weak commercial performance of her third studio album, Glassheart, which was released in November 2012. It became her first album to not debut at number one or earn platinum certification in the United Kingdom. It was also reported that the second single from the album, "Lovebird", had sold fewer than 600 copies, meaning it failed to attain one of 200 chart positions on the UK Singles Chart, was another contributing factor to her departure.

In June 2013, speculation arose that Lewis' fourth album would in fact be a Christmas album, after British production duo MagicIT tweeted that they were in a studio recording Christmas songs with the singer. The following month, Lewis confirmed that she was indeed in the process of recording a Christmas album. She revealed that it was recorded on the recommendation of Syco boss Simon Cowell. Speaking about the decision to record a Christmas album at this point in her career in July 2013, further explained how Cowell had come up with the idea: "Simon is still very much involved in my career and helps me out. He came up with the Christmas album idea, and we both kind of felt it was the right time to go ahead with it."

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