Somnology
Pharmacological treatments are used to chemically treat sleep disturbances such as insomnia or excessive daytime sleepiness. The kinds of drugs used to treat sleep disorders include: anticonvulsants, anti-narcoleptics, anti-Parkinsonian drugs, benzodiazepines, non-benzodiazepine hypnotics, and opiates as well as the hormone melatonin and melatonin receptor stimulators. Anticonvulsants, opiates, and anti-Parkinsonian drugs are often used to treat restless legs syndrome. Furthermore, melatonin, benzodiazepines hypnotics, and non-benzodiazepine hypnotics may be used to treat insomnia. Finally, anti-narcoleptics help treat narcolepsy and excessive daytime sleepiness.
Sleep medicine
When the underlying cause of sleep problems is not immediately obvious, behavioral treatments are usually the first suggested. These range from patient education about sleep hygiene to cognitive behavioral therapy (CBT). Studies of both younger and older adults have compared CBT to medication and found that CBT should be considered a first-line and cost-effective intervention for chronic insomnia, not least because gains may be maintained at long-term follow-up. Sleep physicians and psychologists, at least in the US, are not in agreement about who should perform CBT nor whether sleep centers should be required to have psychologists on staff. In the UK the number of CBT-trained therapists is limited so CBT is not widely available on the NHS.