How do I turn off the sleep mode for the HV-KB558CM keyboard? kb558cmYingjie ZhangMar 26, 2021 Share Unfortunately the sleep feature cannot be turned off. Tags: Kb558cm Share Previous articleNext article Subscribe to Newsletters And receive HAVIT's latest news and deals Your email Subscribe100% free, Unsubscribe any time! Follow us Featured products HAVIT H2010D RGB Wired Gaming Headset with Volume Control & HD Microphone Sale price$32.99 USD 9 reviews HAVIT KB487L TKL Mechanical Keyboard with 89 Keys PBT Keycaps Sale price$79.99 USD 54 reviews HAVIT TH650 RGB Headset Stand with Dual Hanger & 2 USB Ports Sale price$39.99 USD 9 reviews