All night cafe or ???

My partner plays D&D/role-playing games online with some friends on the West Coast. So every week or so he has a call that runs very late into the night (they're two hours behind us) and his office is right beside our bedroom. I have a sound machine, but I can hear him and it keeps me awake. So we're wondering if there is someplace that's open late at night where he might be able to set up his laptop and be able to enjoy a couple of hours without my having to "enjoy" it, too, since my day starts much earlier than his usually does. Thanks for any ideas!