Hello, I'm Jan and I'm happy to help you today. I'm sorry that you are experiencing this problem.
- Reset power option settings. Open command prompt as an administrator. Paste the command below then press Enter.
powercfg -restoredefaultschemes
- Try to perform a Clean boot and disable background application and services as they can also cause these sleep issues.
- Try to unplug all external USB devices and disconnect Bluetooth devices. To identify if any of the external devices is causing this issue.
- Reinstall and update the drivers. Download the latest graphics , chipset, and check for latest BIOS update.
- Disable Fast startup. Open Control Panel> Power Options> Choose what the power buttons do> Change settings that are currently unavailable Uncheck "Turn on fast startup"