Are you awake during ECMO?

Hello there, I'm curious about something regarding ECMO therapy. I understand that it's a life-saving procedure for patients with severe heart or lung failure, but I'm wondering - are patients typically awake during the process? I've heard mixed things about it, so I'm hoping to get a clearer understanding. Does being on ECMO necessarily mean being unconscious, or can patients remain conscious and aware of their surroundings? I'd appreciate any insights you can provide on this matter.