Sleep is an American heavy metal band from San Jose, California. 
The band earned critical and record label attention early in its career. 
Critic Eduardo Rivadavia describes them as "perhaps the ultimate stoner rock band" and notes they exerted a strong influence 
on metal in the 1990s. The band first gained attention with their second album, 
Sleep's Holy Mountain (1992). However, conflict with the band's record company contributed to Sleep's breakup by
 the end of the decade. Sleep's third album, Dopesmoker, was released after the band's dissolution. 
The band reformed in 2009 and has played sporadic live dates internationally since. In 2018, Sleep released their comeback album,
 The Sciences, on Third Man Records, to critical acclaim.