hot weather makes an irritating vibe and lose of focus on doing things specially in tropical countries like Philippines, most of people prefer using air conditioner but not all can afford buying AC's and it also consumes electricity that drain our monthly bills. 
But there are some ways to cool your room without using Air Conditioners,

APPLY THE RIGHT CURTAIN 
First thing to apply is your type of  curtain, why? your curtain has an important role to make your room cooler, the curtain you must use should be an INSULATED CURTAIN because it blocks the sunlight that makes your room hot.

HANG WET CLOTHES IN WINDOWS
this helps to create a mist on your room and instantly cool off your room temperature.

PUT YOUR BED SHEET ON A FRIDGE 
Yes it helps, try to put your be sheets and pillows on the fridge all day and use it before you go to bed, it helps to make you relax because of the low temperature. BUT avoid putting a comforter inside the fridge because it will cause bad odor.

OPEN THE WINDOWS EVERY AFTERNOON 
do not open your windows between 12pm to 5pm, this time range has a heat breeze that supposedly heat your room. The recommended time is 6pm because it blows cold air and try to open your fan to expand the breeze to inside your room. 

SIT SOLO AND AWAY FROM OTHERS
The more people you have in your house, the hotter it will be when all those bodies release heat into the air. Create some distance between you and your partner and loved ones as you sit on the couch or share a bed, so you aren’t radiating heat into each other. Make sure there’s plenty of space for all to stay cooler.

COOL YOUR BED
this other method is more efficient by putting ice pack in your bed, since these padded areas can hold in body heat. You can fill a hot water bottle and pop it the freezer, or use freeze dry rice packs or portable buckwheat pillows instead. You can even try freezing your bed sheets and placing them lightly over your body for a little extra cooling. 

If this helps please leave a comment, thank you.