Could insomnia treat depression?

Not exactly. Insomnia doesn't exactly "treat" depression, but some studies have found that sleep deprivation may temporarily help depression. It returns as soon as sleep pattern normalizes though. http://tinyurl.com/plqvok9 more often, sleep disturbance actually makes depression worse, and resolving this makes relief of depression more likely. http://tinyurl.com/m59y5n3.