It got really quiet at lunchtime

So today I had Mikena eating lunch in the Kitchen while I was checking some stuff on the computer. She was eating just fine and nothing exciting happening. Then... all of a sudden it got really quiet.... too quiet. Mikena usually is jabbering or throwing food on the ground and I couldn't hear the baby talk or the food splatting. So I look around the corner from where I was sitting to this....

She was obviously really tired.. ESPECIALLY since I had taken the tray from her and took off her bib. She would just look around and basically drop her head and fall asleep again. I really love it when she does that.