If you leave a game running and put the PC to sleep, the game process is suspended. This may cause connection errors in multiplayer games or glitches (like lost audio) upon waking.
If you want to finish a large download while you sleep, standard sleep mode won't work. Instead, consider these alternatives: Will Steam Still In Sleep Mode
All active downloads and updates are paused. They will automatically resume once you wake the computer. If you leave a game running and put
Results are mixed; while some users report that Steam continues to count "hours played" if a game is left open in sleep mode, the platform generally cannot track activity while the system is in stasis. How to Download Games Overnight standard sleep mode won't work. Instead