I think this is the narrator's discovery of waking up in a hospital, strapped down like he's crazy, and he's being operated upon in a way eerily similar to what the Visitors did to him. Nobody believes him, and now he's not sure if he even WAS abducted or not...but something brought him here, and now he's "crawling back to sleep," because that's just about all he CAN do at this point.
I think this is the narrator's discovery of waking up in a hospital, strapped down like he's crazy, and he's being operated upon in a way eerily similar to what the Visitors did to him. Nobody believes him, and now he's not sure if he even WAS abducted or not...but something brought him here, and now he's "crawling back to sleep," because that's just about all he CAN do at this point.
Poor guy!