I wonder if there is a way to keep Wifi on when I unplug a Macbook Air and close the lid for a short time of a few minutes. I routinely use X11 forwarding over SSH (for example, running Matlab on a remote box) which needs uninterrupted connection. However, I sometimes work in public space and would hesitate to leave the MBA (which unfortunately doesn't have a Kensington lock slot) unattended for seconds when I need to take a bathroom for example. I understand Power Nap only works when the MBA is plugged. There are also third-party apps such as NoSleep. But it's not clear to me if they have any side effect. Thanks.