Common causes of nocturnal physical disturbances

Experiencing physical disturbances during sleep, such as hand numbness or sudden gasping, can stem from various physiological factors. Hand numbness is frequently caused by nerve compression—specifically the ulnar, radial, or median nerves—resulting from sleeping positions that bend the wrists or tuck hands under the body or pillow.

Sudden gasping or waking in distress can be linked to several conditions. Sleep apnea, characterized by loud snoring followed by a gasp, occurs when the airway narrows or closes, causing oxygen levels to dip. Other potential causes include acid reflux, which may present with a sour smell or cough, nocturnal panic attacks marked by sudden fear and a racing heart, or issues related to the heart and lungs indicated by swollen ankles.