Is there any treatment for adult bed wetting?

See a Urologist: Yes, but first you should have an examination by a urologist.

Yes there is: Primary enuresis is wetting from birth, secondary develops after an appreciable period of dryness. Both treatable, but, need to consult urologist who will take a detailed history & question about possible infections or neurologic issues. Then examination & urinalysis. Some testing or studies may be required. Then ?Medication to reduce urine production or enlarge bladder capacity. Surgery unlikely.