While melatonin appears relatively safe, it is controversial
whether it has clinically important benefits for sleep
disorders [15–18]. Melatonin, especially in a controlled
release formulation (CRM) [19, 20], might be expected to
safely help older long term benzodiazepine users to withdraw
because of its effects on sleep as measured by wrist
actinography [21], electroencephalography (EEG) and
polysomnography [22