Waking up in a pool of sweat is uncomfortable. But it’s not always a cause for concern. It’s usually due to a warm room, heavy sleepwear, or too many covers on your bed. Other common causes of night sweats include stress, hormonal changes and menopause, infections like the common cold, and over-the-counter medications. Sometimes night sweats may be a sign that something more serious is going on. Other new symptoms can help you decide when it’s time to see your provider.