Architect shares a simple trick to cool your room and sleep better when it’s hot: put a wet towel behind the fan

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Summer nights can feel unbearable when the heat won’t let up. But what if a simple trick involving a fan and a wet towel could turn your stuffy, sweaty bedroom into a cool, restful sanctuary? Architect Leo Rogel explains how you can beat the heat and sleep better by making the fan your ally rather than just a noisy air mover.

Cooling your room efficiently with simple tools

When temperatures soar, the challenge becomes how to lower the heat without breaking the bank or installing bulky air conditioning. The truth is, a fan alone only circulates the hot air around—it doesn’t really cool it. Architect Leo Rogel suggests adding moisture to the air as the secret weapon.

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His advice is elegantly simple: take a towel, soak it in water, and place it just behind your fan. As the water evaporates, it naturally cools down the air flowing through the blades. This cooler air then blows across your body, offering immediate relief as you try to fall asleep.

Another easy method is misting a little water around the room with a spray bottle before bedtime. While not glamorous, these small steps can make a remarkable difference in the temperature you actually experience overnight.

Why a wet towel behind the fan works better than you think

Water evaporation is a natural cooling process. When a towel is moist, it absorbs heat from the air, which turns the water into vapor. This phase change uses up heat energy, thus cooling the surrounding air.

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By positioning the wet towel behind a fan, you’re creating a mini evaporative cooler. The moving air speeds up evaporation, pulling heat away more effectively.

Rogel also recommends placing the fan near a window at night to pull in cooler outdoor air. This doubles down on the cooling effect and can significantly lower the room temperature.

While this setup won’t work like an air conditioner—especially during the hottest parts of the day—every degree matters when you’re battling oppressive heat in a small bedroom.

Practical lessons for staying comfortable during summer nights

I remember one scorching July when my own bedroom felt more like an oven. I tried a tiny table fan but was no better off than before. Then, inspired by Leo’s idea, I draped a damp towel right behind the fan blades. The air hitting me suddenly felt cooler, and I slept several hours straight for the first time in weeks.

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This taught me that sometimes, the simplest hacks are the most effective. It doesn’t take expensive equipment—you just need to understand how to work with basic elements like air, water, and evaporation.

How about you? Have you ever tried a similar trick or invented your own cooling hack on a hot night? Or are you thinking of trying this wet towel method? I’d love to hear your thoughts and what’s worked for you in the comments below.

If this little life hack helped you beat the heat, please share it with friends and family so they can finally get some relief too. Summer can be tough, but a breath of fresh, cool air is just a towel away.

Summer nights can feel unbearable when the heat won’t let up. But what if a simple trick involving a fan and a wet towel could turn your stuffy, sweaty bedroom into a cool, restful sanctuary? Architect Leo Rogel explains how you can beat the heat and sleep better by making the fan

22 thoughts on “Architect shares a simple trick to cool your room and sleep better when it’s hot: put a wet towel behind the fan”

  1. That’s rather archaic, especially coming from an architect. Invest in a decent fan and wet towels can stay in the bathroom. A standup silent cylinder style fan makes no noise and will cool an entire room like an a/c. Walmart sells them.

    • Putting a what towel or even a pail of ice behind your fan will only create a higher humidity level. Dry air feels better than moist air. The concept sounds good and you might feel a slight temperature drop. However the higher humidity will make you uncomfortable. If you want to feel cooler and have a dehumidifier, especially during high humidity weather, run that.

    • No it will not. Maybe that is why you have that moldy smell all the time. Dry air is the key. Fan air flow and sad from the sun are your best bet if you don’t have A/C. Full house fans are a great alternative. They suck up air through the house and blow it out through the Attic. Here again during high humid weather it will increase the humidity in the house. During high pressure systems when humidity is low when temperatures are high, it will really cool your house down. Just common sense.

    • Dream on! All fans make a noise! They do nothing to cool the air! If the air in the room is hot, then they will blow that hot air at you!

  2. Down in the south near the Gulf Coast, I have been doing this for years. I also hang a ziplock bag with ice in it behind a fan to add cool mist. This is nothing to write an article about, nor do I take credit for decades of watching people do this with a box fan 😊

  3. Nice idea and cool concept. Pun.

    I freze water bottles. Keeping my freezer full. That helps with my Frezer.
    On oppressive nights, I place a quart bottle frozen in a small bowl to catch the humidity. In front of the small efficient low voltage battery fan I keep running to circulate the air in my cave. It works out well. A dehumidifier and air cooler. The bowl of water is used to water my house,cave, plants, no city water chemicals too.

    Try it you might like it, especially when you keep a small fan spinning all the time for fresh air movement.

  4. I don’t think I’ll put a wet towel to drip behind my bedroom fan where it sits on my oak dresser.

  5. Water near electric? NO! If anything, put the frozen water or ice in front of the fan, not behind it. Fire danger.

  6. Tried that but the problem was that the towel dried out before my alarm went off. So I took two Command hooks and placed them on the bottom of my window and tied each end of a wet towel to the hooks. Then placed a container in the window sill to catch the drip and allow the ends of the towel to touch water to contain wetness in the towel. Then set the fan in front of the window.

  7. I live in a hot and very humid climate. Adding humidity isn’t going to help. Air conditioning and dehumidifier. THATS how to sleep in the summer.

  8. What’s the size of the towel? Is it like the bath towel or smaller like face/back towels?

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