Rest mode allows you to put the console to sleep during a game and instantly restart it from where you left off, just like on the PS4.
Jeff Gerstmann, an American video game journalist, wrote on Twitter: “It seems that putting a PS5 in Rest Mode while running Spider-Man Remastered crashes the entire system, forcing the” repair the external drive “process when you restart the game. “At least that’s been the case for me a few times today, when I did that (no I put the console in Rest mode).”
Seems like putting a PS5 into rest mode while Spider-Man Remastered is running crashes the whole system, forcing that “repair your external drive” process when you start back up. At least that’s how it’s been for me the few times I’ve done that today.
— Jeff Gerstmann (@jeffgerstmann) November 11, 2020
There are also several reports about Godfall, a game produced by Counterplay Games, that faces the same problem.
Quick note on the PS5. Apparently sleep mode makes the system unreliable and rando crash. Had Godfall crash the system 3 times within in the span of an hour.
The fix, give a fresh restart from the main menu and then don’t let it go into sleep mode until it’s patched.
– Tefty (@teft) November 14, 2020
Sony has not yet made any official comment on this, but @AskPlayStation Twitter gives users tips, so it’s a good idea to try it there if you run into problems.