Stop drinking fluoridated water and using fluoridated toothpaste. Fluoride is a well-known neurotoxin that is more toxic than lead and arsenic.
The only way to remove 100% of the fluoride from water is to use a distiller. Thankfully, there are electric counter top distillers available for under $200.
Fluoride damages the endocrine system as well as the pineal gland. This is what appears to be causing so many sleep disorders in people.