Head banging usually occurs in most toddlers during the night. Even though this can be very distressing for the parents, this practice is actually considered normal. It is considered as one of the sleeping disorders like night terrors or sleep walking.

Infants and toddlers bang their head during the night or when they wake up during the wee hours of the morning in order to help them sleep.  Sometimes, it is also compared to other soothing techniques before bedtime including thumb sucking or even pulling their hair.

More often than not, head banging stops by the time your child reaches four years old. But experts said that if a child does head banging day and night, it can be a sign of neurological disorder like autism.