The PlayStation Network will go offline for scheduled maintenance tomorrow morning, Sony's noted.
The PS3 online service will be unavailable from 8:00am GMT until 11:00am GMT (though that's an "estimate" finish time), a community man notes on the official PlayStation forums.
"During this time, you may be unable to sign in to the PlayStation Network. We expect that users will be affected for only 15 minutes during this period," the Sony man says.