Fan for Hot Flashes: The Best Options for Night Relief

By Kurt Tompkins, Bedfans USA. Reviewed October 2026 against guidance from the National Institute on Aging, The Menopause Society, Cleveland Clinic, and the Sleep Foundation. This article is general information, not medical advice.

Quick answer: The best fan for hot flashes at night is one that moves air where the heat builds up, which is under your covers. A ceiling fan or bedside fan helps the room, but an under sheet bed fan like the bFan from Bedfans USA sits centered at the foot of the bed and sends a quiet stream of room air between your sheets, at about 28 to 32 dB, for $204.95. Direct airflow helps stop sweat before it starts, and you control the speed from the bed with a remote.

A hot flash at 2 a.m. rarely starts with a warm room. It starts with a sudden wave of heat in your chest, neck, and face, and then the blanket that felt right at bedtime turns into an oven. The Menopause Society says hot flashes affect up to 80% of women during menopause and last 7 to 10 years on average, so the right fan for hot flashes is not a small purchase. This guide compares the main fan types, explains what to look for, and shows where an under sheet fan fits.

What is the best fan for hot flashes at night?

The best fan for hot flashes at night is an under sheet bed fan, because it moves air inside the bed instead of across the room. Room fans still help, and many women use both.

When they happen at night, hot flashes are called night sweats, according to the National Institute on Aging. The NIA suggests keeping the bedroom cool, layering bedding so you can adjust it, and turning on a fan. The catch is where the fan points. Heat and humidity collect in the pocket of air between your body and the comforter. A fan on the nightstand blows over the top of that pocket. An under sheet fan pushes room air through it and out near your shoulders, carrying trapped heat away from your skin.

Here is how the common options compare for hot flash relief in bed:

• Under sheet bed fan (bFan): Airflow goes under the covers from the foot of the bed. Best for night sweats and for couples who sleep at different temperatures.
• Ceiling fan: Moves the whole room's air and helps the room feel comfortable, but very little reaches under a blanket.
• Bedside tower or box fan: Gives quick relief on your face during a hot flash, but it can be noisy, dries your eyes, and does little for a sweaty back.
• Handheld or clip fan: Useful during the day and when traveling, but it is not built to run all night.
• Air conditioning: Cools the room, but turning the thermostat down for one sleeper often leaves a partner cold and raises the power bill.

Why a regular room fan often falls short for menopause hot flashes

A room fan moves air in the room, while the heat from a hot flash is trapped under your bedding. That is why many women wake up damp even with a fan running a few feet away.

Blankets are designed to hold heat. During a hot flash or a night sweat, your body releases a burst of heat and moisture, and the comforter holds it close. Kicking off the covers helps for a minute, then you feel chilled and pull them back, and the cycle repeats. Cleveland Clinic suggests dressing in layers, drinking cold beverages, and keeping your home comfortable with fans or air conditioning. Those steps work best when the airflow can actually reach the space under your covers.

The Sleep Foundation puts the best bedroom temperature for most adults at about 65°F. A fan for hot flashes does not change the room temperature, but it changes how the bed feels at that temperature.

How the bFan works as a fan for hot flashes

The bFan is an under sheet bed fan that sits centered at the foot of your bed and sends room air between the sheets, across your body, and out near your shoulders. Its two drum base rests on the floor, and a flat panel rises flush against the foot of the bed and tucks under the bedding at mattress height.

The bFan's large squirrel cage blower gives it higher static pressure than other bed fans. That pressure lets it push air under the covers effectively at any speed, so the airflow fully covers you with a cooling breeze instead of fading out at your knees. Neither the bFan nor a BedJet lowers the air temperature; both use the air already in your room. What the bFan changes is where that air goes.

For the best result, use a top sheet with a tight weave. A tighter weave helps the air stay under the covers and travel across your body instead of escaping at the sides. See how the bFan works for setup photos.

What to look for in a fan for hot flashes

Look for airflow that reaches under the covers, a quiet sound level, fine speed control, and a price that makes sense for every night use. These features matter more than raw fan size.

• Where the air goes: Air under the covers matters most for night sweats. A fan that blows across the room helps the room, not the bed.
• Noise: The bFan runs about 28 to 32 dB at normal operating speed. Read more on how quiet the bFan is.
• Speed control: Hot flashes come and go. The bFan remote adjusts speed, so you can turn it up during a flash and back down when it passes.
• Sleep timer: A timer lets the fan run through the first hours of sleep, when many women have the most trouble.
• Power use: The bFan uses about 18 watts on average and 24 watts at maximum.
• Bed fit: The bFan needs about 6.75 inches of clearance under the bed and fits bed heights from 18 to 38 inches, measured from the floor to the top of the mattress, with short and tall versions. If there is not enough clearance, the base can be turned around so it sits in front of the foot of the bed instead of underneath.
• Couples: Two bFans give each sleeper a separate zone. See our guide to the sleep cooling system for couples.

bFan vs BedJet for hot flashes: what is the difference?

Both the bFan and the BedJet move room air through the bed, but one bFan costs less than half the price of one BedJet. That makes the bFan the less expensive alternative for hot flash relief.

At list prices, the bFan is $204.95 and a BedJet 3 is $699. For couples, two bFans cost less than half the price of a dual-zone BedJet, which lists at $1,549 for a queen. The BedJet adds a heating mode, which some people like in winter. If your main problem is heat trapped under the covers during menopause, the bFan focuses on airflow and stays simple. The original Bedfan came to market in 2004, several years before the BedJet, and Bedfans USA has refined the design since then. Read more about the original Bedfan or our guide to BedJet alternatives.

bFan at a glance

• Price: $204.95 with fan, power supply, and remote
• Sound level: about 28 to 32 dB at normal operating speed
• Motor: brushless, digitally controlled DC motor
• Blower: large squirrel cage blower with higher static pressure than other bed fans
• Power use: about 18 watts average, 24 watts maximum
• Controls: remote speed control and a sleep timer
• Fit: bed heights 18 to 38 inches (floor to top of mattress), about 6.75 inches of under bed clearance, or turn the base around to sit in front of the foot of the bed
• Made in: Texas, with over 80 percent American made parts
• Guarantee: 30 day satisfaction guarantee; HSA and FSA eligible, with a simple letter of medical necessity process from Bedfans USA so you can pay with your HSA or FSA card in one place

Many customers report they can raise the thermostat up to 6°F and still sleep comfortably, which helps when a partner sleeps cold.

Other ways to ease hot flashes at night

A fan works best alongside simple habits that reduce how often hot flashes wake you. None of these replace a conversation with your doctor about treatment options.

• Layer your bedding: A light blanket plus a sheet is easier to adjust than one heavy comforter.
• Choose breathable sleepwear: Light cotton or moisture wicking fabrics feel better than fleece.
• Keep cold water by the bed: The NIA suggests small sips of cold water before bed.
• Watch your triggers: Alcohol, spicy foods, and caffeine can make hot flashes worse for some women.
• Talk to your doctor: Hormone therapy and nonhormonal medicines can help some women. Our menopause page and our earlier list of the best fans for hot flashes at night cover more ideas.

Night sweats are not always menopause. If they are drenching, new, or come with fever, weight loss, or other symptoms, see our page on night sweats and talk with a clinician.

Ready for better sleep?

The bFan sits at the foot of your bed and sends a quiet stream of air under your sheets. Direct airflow helps stop sweat before it starts, and one bFan costs less than half the price of one BedJet, making it the less expensive alternative. Shop the bFan at bedfans-usa.com

Frequently Asked Questions

Where should you point a fan during a hot flash in bed?

Point the airflow at your torso and under the covers, not straight at your face. Your face cools quickly, but the heat that wakes you is usually trapped against your chest, back, and legs by the comforter. A bedside fan aimed at your face can dry your eyes and feel harsh after the hot flash passes. An under sheet bed fan such as the bFan solves the aiming problem because it sends air from the foot of the bed up along your body and out near your shoulders, where it carries trapped heat out of the bed.

Can a fan for hot flashes run all night safely?

Yes, a fan built for sleep can run all night, and many people use one every night for years. Look for a fan designed for continuous use, with a quiet motor and low power draw. The bFan uses a brushless DC motor that averages about 18 watts, and it has a sleep timer if you only want airflow for the first part of the night. Keep cords clear of walkways and the fan intake free of clutter. If you wake up chilled after a hot flash ends, lower the speed with the remote instead of turning the fan off completely.

Do hot flashes at night feel worse in summer?

Many women say hot flashes feel worse in summer because a warm bedroom leaves less room for the body to release heat. A hot flash is driven by hormonal changes, not the weather, but a humid room and heavy bedding make each episode feel more intense and slower to settle. Keeping the bedroom close to 65°F, switching to lighter bedding, and moving air under the covers all help. An under sheet fan is especially useful in summer, because you can keep the thermostat a little higher and still feel comfortable under the sheets.

Is a quiet fan for hot flashes loud enough to cover noise?

A quiet bed fan gives a soft, steady sound that some people find soothing, but it is not designed to be a white noise machine. The bFan runs at about 28 to 32 dB at normal operating speed, which is close to a whisper. That level is low enough that most partners sleep through it. If you rely on white noise to mask traffic or a snoring partner, you can run a separate sound machine at the volume you like and keep the bFan at the speed that feels best for your hot flashes.

Can men use a fan for hot flashes too?

Yes. Men can have hot flashes and night sweats from low testosterone, prostate cancer treatment, some medications, and other conditions. The National Cancer Institute notes that some prostate cancer treatments, including certain hormone therapies, can cause hot flashes and night sweats in men. The same airflow problem applies: heat gets trapped under the covers, and a room fan does not reach it. An under sheet fan like the bFan works the same way for any sleeper. Men with new or unexplained night sweats should talk with a doctor, because the cause matters more than the fan.

Will a fan for hot flashes help if my partner gets cold?

It can, because an under sheet fan keeps the airflow on your side of the bed instead of chilling the whole room. A ceiling fan or a lower thermostat affects both sleepers, which is a common reason couples argue about the bedroom temperature. With the bFan, the air travels under your covers, so your partner can stay warm under theirs. If you both run hot at different times, two bFans give each of you a separate zone with your own remote, and two bFans cost less than half the price of a dual-zone BedJet.

Resources

• Hot Flashes: What Can I Do? from the National Institute on Aging: NIH guidance on hot flash triggers, bedroom tips such as using a fan, and treatment options
• Hot Flashes from The Menopause Society: How common hot flashes are, how long they last, and how they affect sleep and mood
• Hot Flashes: Triggers, How Long They Last and Treatments from Cleveland Clinic: Causes, triggers, and self care steps such as dressing in layers and using fans
• Menopause Symptoms and Relief from the Office on Women's Health: Federal overview of hot flashes, night sweats, and sleep problems during menopause
• Hot Flashes and Night Sweats from the National Cancer Institute: How cancer treatments cause hot flashes in women and men and how they are managed
• The Best Temperature for Sleep from the Sleep Foundation: Why a bedroom near 65°F supports better sleep and how heat disrupts it