Sleep Token

Years Active: 2016–present

Genre/s: Alternative metal, indie pop, progressive metal, post-rock

Label/s: Spinefarm, Basick, RCA

Members: Vessel, II

Sleep Token are an English rock band formed in London in 2016. Their music has garnered widespread media attention and popularity in recent years due to their esoteric storytelling, vulnerable lyrics, and the inclusion of often two or more genres in their music to create a unique sound. To date, they have released four studio albums, two EPs, two standalone songs, and multiple covers.

The band consists of two main members, only known as Vessel and II, and two touring members, known as III and IV. The members have never revealed their names or identities and prefer to be anonymous. On stage, they conceal themselves with masks, long robes, and black body paint.

After self-releasing their debut EP, One, in 2016, the band signed with Basick Records and issued a follow-up EP, Two, the next year. The group signed with Spinefarm Records and released their first full-length album (LP), Sundowning, in 2019, which was followed in 2021 by This Place Will Become Your Tomb. A third album, Take Me Back to Eden, was released in 2023. Their fourth album, Even in Arcadia, was released in 2025 through RCA Records.