A physician consultation is also needed

It can be due to 1)Dehydration (especially at night) Even if you drink enough water in the daytime, fluid intake drops at night Sleeping in an air-conditioned or dry room worsens it 2) Mouth breathing during sleep Very common cause of severe night-time dryness Happens due to:Nasal blockage,Snoring ,Stress or anxiety this leads to white tongue coating and bad breath in the morning 3) Stress & anxiety Stress reduces saliva flow Night-time dryness + poor sleep is common in anxious individuals 4) Vitamin & mineral deficiencies Especially:Vitamin B12 ,Iron,Vitamin D Can also cause dry skin, cracked lips, burning mouth 5)Medications:Antihistamines,Painkillers,Antidepressants,BP or allergy medicines 6) Hormonal or medical causes :Thyroid imbalance, Autoimmune conditions (rare, but if dryness is severe and long-standing),Acid reflux (GERD)

There are many reasons for dry mouth like mouth breathing, dehydration,medicines,etc Please visit the dentist to know the proper reason

Hello Dry mouth reasons are various like dehydration, acidity, medicines, mouth breathing Kindly consult once with nearest dentist