The afternoon sun streamed through the dusty window of the coffee shop, illuminating dust motes dancing in the air. Jake propped his head on his hand, the dull ache behind his eyes a familiar companion. He had no idea what to do, what to think. He’d been up for hours. He was halfway through his second coffee when a familiar chord progression drifted through the speakers, and he recognized his work. The music wasn't his style.

His mind felt like it was filling with cotton wool. He blinked slowly, trying to clear his head, but it was to no avail. The song, “Echoes of Yesterday,” played on. It was a cover, a completely different arrangement. He felt a profound sense of… something… as he slowly sank into the seat. He was barely able to keep his eyes open.

Emotion: sleepy

Cluster: Fatigue / Lethargy
PC1 (Valence): -0.86 Negative
PC2 (Disposition): -1.55

Role in Research

This story is one of 1,000 stories generated for the emotion sleepy. During extraction, it was fed through Gemma4-31B and its hidden state activations were captured at 11 layers.

The mean activation across all 1,000 sleepy stories, after denoising with neutral dialogue baselines, produces the sleepy emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the sleepy vector is projected through the unembedding matrix.

Promoted:
😴0.318
weary0.310
fatigue0.296
💤0.283
似乎0.280
Suppressed:
B-0.343
C-0.294
because-0.293
భి-0.281
เพราะ-0.277