Sleep is an American
stoner doom band from
San Jose, California. Active during the 1990s, Sleep 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
heavy metal in the 1990s. However, conflict with its record company contributed to Sleep's breakup by the end of the decade. The band reformed in 2009, and has played sporadic live dates internationally since.