All Night Long

This track was developed by the Northwestern University Sleep Lab to study the effects of brainwave entrainment on sleep. Instead of a traditional induction, where we use the frequency-following response to lead from an alert beta state to theta, then delta sleep frequencies, we use delta and sub-delta to "push" the amplitude of theta and delta, resulting in healthy sleep. This session is designed to be played all night continuously. Use this session if you wake up frequently at night or have trouble falling back asleep. Ultra-low vibration frequencies are used for vibroaquistic beds and mats. This soundtrack alters brainwaves. Allow ample time to return to an alert state before resuming activities.