Sleep Theory is an American rock band from Memphis, Tennessee. They formed in 2019 and consist of vocalist Cullen Moore, guitarist/unclean vocalist Daniel Pruitt, bassist Paolo Vergara, and drummer Ben Pruitt. The band began as a solo project of Moore's, a US Army veteran, who was then joined by Vergara. The band blends styles of heavy metal and R&B. They released their debut EP, Paper Hearts, in 2023, which was preceded by the singles "Another Way" and "Numb". The EP generated over 33 million streams in the next few months.
On February 5, 2025, they announced that their debut album, titled Afterglow; the album was released on May 16, 2025. They went on tour in the U.S. in AugustâÂÂDecember 2025 to support the album along with Falling in Reverse, Nevertel, Oxymorrons, Strayview, Papa Roach and The Used. They announced a 2026 EU and UK tour, which will begin in February 2026 with supporting act The Pretty Wild.
In February 2026, the band was announced as part of the lineup for the Louder Than Life music festival in Louisville, scheduled to take place in September.
Current members
Former members
Heavy Music Awards
iHeartRadio Music Awards