Issue Description
Mac won’t sleep, wakes unexpectedly, or fails to wake from sleep.
Common Causes
- Background processes
- Network activity
- Power settings
Step-by-Step Solution
Step 1: Check Energy Settings
- System Settings → Battery
- Review sleep and wake options
Step 2: Identify Wake Reasons
- Open Terminal
pmset -g log | grep -i wake
Step 3: Disable Wake for Network Access
- Battery → Options
- Disable Wake for network access
Step 4: Reset Power Management
- Reset SMC (Intel Macs)
Explore Further
- Check USB devices waking Mac
Prevention & Best Practices
Disconnect unused peripherals overnight.