The office air conditioning hummed, a monotonous drone that was lulling to Chloe. She was struggling to keep her eyes open, each blink feeling like a tremendous exertion.

She shuffled into the apartment, the keys nearly slipping from her fingers. Liam was in the living room, surrounded by papers.

"Hey," she said, voice cracking. "Rough day."

Liam looked up, grinning. "Ni hao! Yes, I was just reading up on Mandarin. I figured, you seem a bit exhausted, so a nice little language surprise!"

Her brain struggled to process this. Mandarin? Right now, all she wanted was to lie down, to be still.

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
à°­à°¿-0.281
เพราะ-0.277