Repeated bathroom trips, unusual thirst and waking exhausted can be easy to dismiss as another bad night. Sometimes, however, these changes accompany diabetes, especially alongside unexplained weight loss or blurred vision. They are clues worth checking, not proof of a diagnosis. NIDDK

Frequent urination and increased thirst are particularly important to notice together. When blood sugar is high, the kidneys remove excess glucose through urine, taking water with it. That fluid loss can leave you thirsty and repeatedly interrupt your sleep. Mayo Clinic

Night sweats tell a different story. In people taking insulin or certain diabetes medicines, sweating, nightmares or waking confused can indicate blood sugar dropping too low during sleep. These symptoms should not be presented as reliable signs of undiagnosed diabetes. NIDDK

Tingling feet, unusual hunger and persistent fatigue can also accompany diabetes, but none is specific to nighttime or diabetes alone. An isolated restless night reveals little. New, persistent symptoms, particularly several occurring together, deserve a conversation with a healthcare professional. NIDDK

Blood testing, rather than a symptom checklist, establishes whether you have diabetes. Arrange an assessment if these changes continue. For someone with diabetes, severe confusion, seizures or loss of consciousness may signal a blood-sugar emergency and require immediate help.