4. Sleep Apnea
Obstructive sleep apnea (OSA) is a common and often undiagnosed cause of night sweats. This disorder involves repeated airway blockages during sleep, leading to intermittent drops in oxygen levels and brief awakenings. The body’s stress response to these events can trigger sweating episodes.
Night sweats from sleep apnea are often accompanied by loud snoring, gasping for air during sleep, and daytime fatigue. Because OSA increases the risk of high blood pressure, heart disease, and stroke, recognizing and treating it is crucial.
Diagnosis typically involves an overnight polysomnography (sleep study), which measures breathing patterns and oxygen levels. Treatment options include continuous positive airway pressure (CPAP) therapy, oral appliances, and lifestyle changes such as weight loss.
5. Low Blood Sugar
Nocturnal hypoglycemia, or low blood sugar during sleep, can cause night sweats, especially in people using insulin or other diabetes medications. When blood sugar drops too low, the body releases adrenaline, which can trigger sweating, shakiness, and waking up feeling unwell.
This condition is more common in people with type 1 diabetes but can affect anyone with diabetes on glucose-lowering therapy. Symptoms may also include headaches, confusion, and irritability upon waking.
Monitoring blood glucose levels and adjusting medication doses in consultation with a healthcare provider can help prevent hypoglycemia. Eating a small bedtime snack may also stabilize overnight blood sugar.
6. Anxiety and Stress
Psychological factors like anxiety and stress can activate the sympathetic nervous system, leading to increased sweating even during sleep. Night sweats related to anxiety are often accompanied by difficulty falling asleep, restless sleep, and a racing mind.
Stress-induced night sweats may not be continuous but tend to occur during periods of high emotional strain or panic attacks. Addressing the root cause through cognitive behavioral therapy, relaxation techniques, or medication can reduce these symptoms.
Improving sleep hygiene, practicing mindfulness, and managing daily stressors are practical steps that may alleviate night sweats linked to anxiety.
