Use the plug over the kitchen counter next to the couch. Get a 110V plug-in timer that has an outlet receptacle, set it for the amount of delay you want and plug it into the wall socket. Take an extension cord of sufficient length and cut the female end off; strip the ends of the bare cord wires about 3/4" each. Plug the male end of the extension cord into the timer outlet.
Wrap one wrist (IIWMI'd use the left one) in 2" gauze you have wetted w/one teaspoon of table salt to a cup of water, about 1/4" of damp gauze should do. Duct tape the bare wire ends to the gauze separating the bare copper about 2", then lay on the couch & watch your programs, dozing off as is your habit. When the timer goes off, you will be awakened with a reminder to shut off the inverter.
If that doesn't work as planned, check back for more helpful suggestions.