Fan Type
There are those that believe the type of fan you have impacts your sleep, and there have been studies to back up this claim. The general consensus is that electric fans become ineffective at a certain temperature, which causes more harm than good.
Warm Air
The reason for this is simple. When the room temperature climbs above 95 degrees, it’s no longer circulating cold air. Instead, that warm and sticky hot air is being blown around, which could end up being warmer than your body temperature.