Why can't i sleep without music? how do i stop depending on this?

It is probably a: Conditioned response. You can work to replace that w another sleep ritual. Here are some good sleep hygiene tips. 1. Keep a regular bedtime & wakening time (to include weekends). Get up the same time each day, regardless of what time you fell asleep. 2. Make a regular, relaxing bedtime routine. Relaxing rituals prior to bedtime may include a warm bath or shower, aroma therapy, reading, .