Sorry to hear you are having issues with dry mouth and coated tongue in the mornings. I am a mouth breather and my mouth is always dry in the morning.
From what you describe it sounds like you have nothing more than a mild case of coated tongue. After a good brushing of your teeth and tongue this coating should go away each morning.
If you feel it is more than mouth breathing you should see you physcian for a medcial screening evaluation.
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