Jackson and Charvel Unveil Heavy-Hitting Signature Models for Sleep Token’s IV and III

Sleep Token has undeniably taken the modern metal scene by storm. Blending crushing guitar tones, sultry vocals, atmospheric synths, and hip-hop beats, the anonymous quartet's genre-bending sound has made them one of the biggest rock bands on the planet today. (If you’re still getting acquainted with the enigmatic group, be sure to check out our comprehensive guide to Sleep Token).

Now, the musicians responsible for the band's massive low-end and driving rhythms—guitarist 'IV' and bassist 'III'—have been honored with their own signature models from Jackson and Charvel. Built to handle intense drop tunings and diverse sonic palettes, these instruments are as striking and mysterious as the band itself.

Here is a closer look at the newly revealed signature models.

Jackson Pro Plus Signature Sleep Token IV Monarkh Baritone

Price: $2199.99/£1,949.00

Guitarist IV is at the heart of Sleep Token's instantly recognizable sound, and his new signature Jackson Pro Plus Monarkh Baritone is a single-cut behemoth designed for absolute sonic authority.

30-inch scale length

Built to hit huge notes an entire octave down from traditional guitars, this mahogany-bodied instrument boasts a massive 30-inch scale length. To ensure perfect intonation and rock-steady pitch at these extreme depths, the guitar is equipped with an EverTune F6 bridge featuring custom tension saddles, paired with Jackson sealed die-cast locking tuners.

Aesthetically, the IV Monarkh is stunning. It features a shimmering quilt maple veneer cap finished in Gloss Transparent Black Burst.

The three-piece caramelized maple set-neck is topped with a striking pale moon ebony fretboard—meaning each guitar will possess a unique streaky grain pattern. It also features a 12"-16" compound radius, distinct pearloid teardrop inlays, 22 jumbo stainless steel frets, and Luminlay side dots for visibility on dark stages.

Fishman Fluence

Tonally, Sleep Token’s music demands extreme versatility, ranging from crystal-clear cleans to hard-hitting, high-gain tones. To achieve this, the guitar is loaded with Fishman Fluence Open Core Classic humbuckers, featuring a push/pull volume knob for active and passive voice activation, ensuring clarity in the lowest registers alongside full-range dynamism.

Charvel Sleep Token Signature III Pro-Mod San Dimas 5-String Bass

Price: $1599.99/£1,399.00

Driving rhythm is the core of Sleep Token's unique sound, and the nameless bassist known as 'III' is key to creating those groove-driven lines. The new Charvel Pro-Mod San Dimas 5-String Bass in Black is a high-quality, tonally versatile modern instrument capable of meeting the massive scope of the band's diverse sound.

To retain outstanding string tension across the low register, III’s signature bass features an ergonomic 34.4" to 35.5" multi-scale design. This allows for a relaxed, comfortable fretting hand, following the natural movement up and down the caramelized maple neck.

The 12"-16" compound-radius fingerboard features 24 jumbo frets, Luminlay side dots, and a custom question-mark inlay unique to this signature model.

Fishman Fluence Soapbar pickups

Under the hood, the bass is powered by custom red Fishman Fluence Soapbar pickups—a rare aesthetic treat, as these are typically only available in black or silver. Because III contributes so much to the melody and texture of Sleep Token's music, the electronics are highly versatile.

Players can dial in their exact tone using a blend knob, a 2-band EQ with stacked concentric bass/treble controls, and a 3-way mini toggle switch to seamlessly flip between hi-fi active directness and passive, vintage-tinged dynamism.

Both models come complete with deluxe gig bags to keep them safe on the road. Whether you are looking to replicate Sleep Token's monstrous riffs or simply need a meticulously crafted extended-range instrument, these new signature models from Jackson and Charvel are more than up to the task.

View at Charvel