EEG researchers tend to find that insomniacs show low levels of SMR (sensorimotor rhythm) frequencies in the brain.
SMR is the part of the brain which controls body movement in the arms, legs, feet, hands and other parts. During sleep the SMR works to inhibit movement. If you have low levels of SMR, this can result in increased body movement during sleep, and contribute to a restless sleep pattern.
This track uses isochronic tones to stimulate your brain at the 12-15Hz range, and increase your SMR.
SMR is also found to be low in those with ADHD, anxiety and depression.
As it's in the low Beta range, this track can also be used to help improve attention and focus levels.