In a little while he could tell by her breathing she was sleeping again.

She could hear by his breathing that he was still asleep next to her.

It got so I could judge how many he'd had, just by his breathing.

Sylvia was asleep, he could tell by her heavy rhythmic breathing.

They all waited, but total silence followed, broken only by their breathing.

I could tell by his breathing that Kenji was awake.

He was already asleep, she could tell by his regular breathing.

The night was very still, the silence broken only by Una's soft breathing.

Soon, by his deep, steady breathing, she could tell he was asleep.

Those men are fast asleep, I know it by their breathing.