24-year-old Caleb Stone was born in the Bay Area and now lives and makes music in LA. The former drummer for death metal band Mouth of the Serpent and bass player for Professor Calculus has just released an instrumental album entitled Sleeepy Bitches, and it’s well worth your time. Featuring co-production from Pyramid Vritra, Matt Martians (from The Internet), Midtown Pat, and SPEAK!, the mixtape is a sexy mash-up of female vocals, deep bass and jazz samples.

Download the mixtape for free here and hear a track from the album below.