Dear, Welcome to HCM We understand your concerns I went through your details. You had already consulted an ENT specialist and they said there is nothing pathological or physiological. Snoring is a noise that occurs during sleep when the child is breathing in and there is some blockage of air passing through the back of the mouth. The opening and closing of the air passage causes a vibration of the tissues in the throat. The loudness is affected by how much air is passing through and how fast the throat tissue is vibrating. Children who are three years or older tend to snore during the deeper stages of sleep. The following tips may help you. 1. Change the sleep position 2. Help open the child s nasal passage 3. Change the pillow or rearrange the height of pillows 4. Make your child drink enough water. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible. Hope this answers your query. Further clarifications are welcome. Good luck. Take care.