@itsfoss Seemingly hibernate forever without issue. I started a game of Ratchet and Clank months ago on my SteamDeck. Every couple of weeks I'll wake the SteamDeck up... play a bit... and send it to sleep again. I don't have to load the game up again and watch the splash screens... kinda magic.
@BenjaminNelan @itsfoss they made this feature on Xbox and sold it as the next gen feature, lol. Steam Machine could do that back in the day too