I have a really dry mouth when I wake up in the morning. What might be causing this?
There are a number of different things that may be responsible for your symptoms.
Having a blocked nose means that you are more likely to mouth breath whilst you're asleep, which dries out the mouth. If you snore, this is likely to be the case. You may find the dryness and snoring are worse when you have a cold, or if you suffer with hay-fever.
Drinking too much alcohol before you go to bed without enough water means you may go to bed somewhat dehydrated. If this might be the case, then try cutting down the amount of alcohol you drink and alternate alcoholic drinks with water or non-fizzy soft drinks. If you feel you can't cut down your alcohol intake then try to drink plenty of water (at least a pint) just before you go to bed to help hydrate your body while you sleep.
Some medications have this as a side effect, for example, amitriptyline, which is most often used to treat depression. Check the leaflet of any medication you are taking to see if this is the case. People who are anxious or worried about something often find that they have a dry mouth very soon after they wake up. When the worry disappears, then so does the dry mouth.
Sometimes acid reflux can produce a sensation of a dry mouth, and is usually accompanied by an acidic taste in the mouth too.
There are a few other medical conditions that have dryness of the mouth as one of their symptoms, so you should consult your doctor for a check-up if the problem persists.