My little girl was born last April. So she was still very young during last summer. Her room gets very hot so I would put the aircon on to cool down the room before she went to bed. Then turn it off and put on the fan. She would sleep in her short sleeve body with no legs/feet, most of the time she wouldn't have a blanket on either. The room would seem really hot but cooler where she was laying because of the fan. The reason I didn't use the aircon is because I didn't want her to get used to it and therefore always be uncomfortable in hot humid weather. She is now a year old and we have another summer, so I shall see if it works for her again.