Sleep Token's masked members IV and III have collaborated with guitar makers Jackson and Charvel to produce custom signature instruments tailored to the band's sound. The two models, unveiled to help fans and players replicate the band's distinctive "devastating tonal identity," mark a notable endorsement deal for the metal act, whose visual anonymity and heavy, atmospheric sound have made them one of rock's most talked-about acts in recent years.

The Jackson Pro Plus Series Signature Sleep Token IV Monarkh SC guitar features a whole-octave-down tuning and an EverTune 6 bridge for stability in low registers, while the Charvel Sleep Token III Signature Pro-Mod San Dimas Bass V is a five-string bass fitted with custom Fishman pickups for added clarity. Fender's Chief Product Officer, Justin Norvell, praised the collaboration, and the pair demonstrated the instruments with an instrumental rendition of the track 'Vore'. The announcement coincides with Sleep Token's tenth anniversary, marked by a Rock Sound magazine cover feature revisiting their debut single 'Thread The Needle'.