Hi . My son is 2 years 3 months. He used to sleep about 3 hours a day and night by 12am or 1 til last week. Now I tried to make him sleep only at night by making him play for the whole day . He was completely alright for about 4 days. But Sunday (yesterday) night he slept early by 7.40 as he woke up early. At night he woke up when I was sleeping. My hubby gave him dosa that too in SMALL amount.. After that he is not normal. He used to vomit every once in a while even the water he takes. Note. I will not give any food item from 12 am to 5 am. We went to Tirupati and returned Monday night only. . Is this any kind of dehydration problemI'm worried about him