What causes my circulation to be cut off in arm while sleeping every day?

Circulation in your arm may be cut off while sleeping due to pressure on nerves or blood vessels, often caused by your sleeping position. For example, resting on your arm or having it tucked under your body can compress these structures. Conditions like carpal tunnel syndrome or thoracic outlet syndrome can also contribute to this issue. If it persists, consider consulting a healthcare professional for further evaluation.