I Have A 18 Month Male Child That Doesn't Stay
Consult ENT doctor and get done detailed check up for nose, pharynx.
Detailed Answer:
Thanks for your question on Ask a doctor forum.
I can understand your concern.
I have gone through the detailed history you have given.
Snoring and sleep disturbances in a Toddler should be evaluated for upper Airway obstruction like DNS (deviated nasal septum), nasal polyps, adenoids, tonsils etc.
So better to consult ENT doctor and get done detailed clinical examination of Upper respiratory tract (nose, pharynx, larynx).
If all these are normal then possibility of nightmares or night terrors are more.
But better to first rule out obstructive causes.
Please let me know if you have consulted ENT doctor or pediatrician about this.
I will be happy to help you further. Wishing good health to your son. Thanks.