Waking Up With a Dry Mouth? Here’s What Your Body Might Be Telling You
Waking up with a dry mouth is common, but it can happen for many reasons. Sometimes it is simply due to dehydration or sleeping with your mouth open; other times it may point to an underlying issue worth checking.
1. You may be dehydrated
Not drinking enough fluids during the day, sweating heavily, or losing fluids overnight can reduce saliva production.
What may help:
- Drink enough water throughout the day
- Limit excessive alcohol before bedtime
- Keep your bedroom comfortably humid if the air is very dry
2. You may be breathing through your mouth while sleeping
Nasal congestion, allergies, a blocked nose, or sleep habits can cause mouth breathing, which dries out the mouth.
3. You may snore or have sleep apnea
Dry mouth in the morning can occur in people who snore or have obstructive sleep apnea, especially if it is accompanied by:
- Loud snoring
- Gasping or choking during sleep
- Morning headaches
- Excessive daytime tiredness
4. Your medications may be contributing
Many medicines can reduce saliva production, including some used for:
- Allergies
- Depression
- Anxiety
- High blood pressure
- Pain
If you suspect a medication is causing dry mouth, speak with a healthcare professional before changing it.
5. High blood sugar may be a factor
Frequent dry mouth, especially along with:
- Increased thirst
- Frequent urination
- Unexplained weight loss
- Fatigue
may be a reason to discuss blood sugar testing with a healthcare provider.
6. Your oral health may need attention
Low saliva levels can increase the risk of:
- Bad breath
- Tooth decay
- Gum problems
- Mouth irritation
