Our expert says:
Waking up every 90 minutes or so is completely normal - most people just dont remember waking.
Your problem is that you are not getting back to sleep. The most common cause for this is a depression. After that are a number of different causes, including alcohol at bedtime, spending too long in bed, medications, and bad sleep habits.
Discuss the possibility of a depression with your doctor. If that is not the answer, you may need to see a sleep doctor.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
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