Please upload the newest Firmware into the keyboard to fix this issue. Follow the instructions found at the bottom of this page under the section HOW TO UPLOAD A NEW FIRMWARE.   If after uploading the new Firmware into the keyboard, the keyboard still doesn’t wake up: Using a Windows computer: Open the Device Manager, or press [Windows key][R] and type “devmgmt.msc” and press OK. In Device Manager, expand “Keyboards”, right-click on the “HID Keyboard Device” and click on Properties. Do this for each, one at a time, if there are several “HID Keyboard Device”. Go to the “Power Management” tab, remove the check on “Allow the computer to turn off this device to save power”, and then click OK. Reboot the computer and test your keyboard. If that doesn’t work, go back to the Device Manager, uninstall the “HID Keyboard Device” (all of them if there are several HID Devices), and reboot the computer. The computer will then install the correct driver automatically for each.  Afterward, do the above steps 1-4. Using an Apple computer: The keyboard not working (waking up) after the computer goes to sleep is a known issue, but unfortunately, it is a current macOS issue affecting some USB peripherals. Besides the Cleave, there are several keyboards, including Apple keyboards, that do not wake up after the computer goes to sleep in Apple computers under certain conditions. The best solution will be for Apple to fix this issue in their macOS, as they have done in the past. Please update your macOS when an update becomes available. You can learn more about this issue on these pages:  [https://discussions.apple.com/thread/250726669][https://discussions.apple.com/thread/250803035] One possible solution is to connect an external USB HUB to the computer and then the keyboard to the USB HUB. Please give this a try if possible. Another possible solution is for you to change sleep and wake settings and/or change Energy Saver preferences. Using a Linux computer: One solution is to disable the “wakeup from suspend” functionality for the Truly Ergonomic Keyboard at the Linux driver layer. The downside is that the computer would not be woken from “suspend” by pressing a key on the Truly Ergonomic keyboard. However, pressing the computer’s power button or moving the mouse should wake it up. To disable “wakeup from suspend” for the Truly Ergonomic Cleave, as “root” user, create a file /etc/udev/rules.d/99-trulyergonomic.rules containing the following single line: ACTION==”add”, SUBSYSTEM==”usb”, DRIVERS==”usb”, ATTRS{idVendor}==”258a”, ATTRS{idProduct}==”0016″,ATTR{power/wakeup}=”disabled” This is specific to the Cleave keyboard as it is conditional on the USB vendor+device ID of 258a:0016.