Select from options: Continue writing the next sentence.

How to use a bed fan to help stop night sweats
Learn the basics of cooling a room.
Heat rises and, as a result, the coolest air hovers around the floor. Pushing up this cooler air can cool you down and minimize or prevent night sweats.

Select from the following.
[1]. Place any cool padding on the floor beneath you. Cover anything you can't touch with an elastic sheet.;
[2]. If you are under 70, ambient temperature should be sufficient for both room and fan. Generally, try 52 to 40 degrees fahrenheit (16 to 32 degrees celsius).;
[3]. The most important thing to understand is how rapidly the room's temperature rises and fall at the same rate (or at a certain speed). Cool the room down by lowering the temperature slightly to an even level.;
[4]. A room in which air cannot circulate properly can also get hot. A small space obstructed with large objects may not be as a cool as a larger space or one that contains less clutter.;
Answer:
[4].