The bustling city noises outside the window faded as Ben sank onto the plush armchair, every muscle aching. He had been running errands all day and the energy was slowly draining from his body. He felt a deep desire to simply collapse and sleep.

His nephew, Sam, proudly presented a drawing. "Uncle Ben, meet Nibbles! He likes to eat all the crayons." The drawing showed a small, round creature with a large mouth and tiny, grasping hands. Ben found the drawing oddly familiar.

Nibbles. He had nearly forgotten about the creature from his childhood, the one who lived under his bed. He rubbed his eyes, the world feeling a little blurry. "He seems… hungry," he muttered, as the drawing seemed to shift and change before his eyes.

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