The deep breathing on the pillow did not relax.
This deep breathing slows your heart rate, relaxes your body and helps to focus your mind.
She felt her breathing relax, as though a belt tied across her rib cage had been suddenly loosened.
The breathing relaxed, the pressure ceased.
His breathing, which earlier had been forced, had relaxed to its normal rate again.
He stood by the fireside and Kemp heard his breathing relax.
Her eyes closed again and her breathing relaxed into the light, even rhythm of sleep.
"Don't," she said, now calm, her breathing steady and relaxed.
I let my breathing relax and watched him.
Her breathing relaxed to the point that she sighed.