Bed Cooler for Hot Sleepers: How the bFan Compares
By Kurt Tompkins, Bedfans USA. Reviewed October 2026. Competitor details come from the makers' own sites and independent reviews, and prices change often, so confirm before you buy.
Quick answer: A bed cooler is any product that targets the temperature of your bed instead of the whole room. Air based bed coolers like the bFan and BedJet 3 move room air under the sheets, while water based systems like the Chilipad Dock Pro and Eight Sleep Pod 5 circulate temperature controlled water through a mattress pad or cover. The bFan from Bedfans USA is the simplest and least expensive of these, at $204.95, less than half the price of a BedJet.
If you sleep hot, you already know the problem. The room can feel fine while the bed turns into a heat trap, and turning the thermostat down for one person makes everyone else cold. A bed cooler focuses on your sleep surface so you can rest without cooling the entire house.
What is a bed cooler, and how do the main types work?
Bed coolers fall into three groups: air based bed fans, water based cooling pads, and passive bedding like a cooling mattress topper. Each changes your bed temperature in a different way.
- Air based bed coolers: The bFan and BedJet 3 move air from the room under your covers. Neither lowers the air temperature. They carry trapped heat and humidity out of the bed.
- Water based cooling pads: The Chilipad Dock Pro, now sold by Sleepme as Chilipad 1.0, and the Eight Sleep Pod 5 pump temperature controlled water through a pad or cover on the mattress, with a control unit next to the bed. Eight Sleep now also sells a newer Pod 6.
- Passive bedding: Gel or open cell mattress topper materials, breathable sheets, and moisture wicking sleepwear hold less heat but do not move air or water.
How does the bFan bed cooler work?
The bFan sits centered at the foot of the bed and sends a quiet stream of room air between your top and bottom sheets. Direct airflow helps stop sweat before it starts, and the moving air pushes trapped heat out near your shoulders.
The two drum base rests on the floor and a flat panel slides under the bedding at mattress height, so the bed cooler stays discreet with no hose or bulky box. Watch how the bFan works for a quick demonstration.
- Sound level: about 28 to 32 dB at normal operating speed, quiet enough for most bedrooms
- Power: about 18 watts on average, never more than 24 watts
- Controls: remote speed control and a sleep timer
- Fit: bed heights from 18 to 38 inches (measured from the floor to the top of the mattress), 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, see returns
Bed cooler comparison: bFan vs BedJet 3, Chilipad Dock Pro, and Eight Sleep Pod 5
The bFan is the simplest bed cooler and costs the least. BedJet 3 adds heat, while the Chilipad Dock Pro and Eight Sleep Pod 5 use water and cost far more.
| Bed cooler | How it works | Best for |
|---|---|---|
| bFan by Bedfans USA | Moves room air under the sheets from the foot of the bed, no hose | Night sweats and hot sleepers who want quiet, simple airflow; $204.95 |
| BedJet 3 | Forced room air through a hose and nozzle, plus heating modes | People who also want a heated bed; one bFan costs less than half the price |
| Chilipad Dock Pro (Chilipad 1.0) | Bedside unit circulates heated or chilled water through a mattress pad | People who want set temperatures from an app; Sleepme lists it from $1,299 |
| Eight Sleep Pod 5 | Hub circulates water through a cover, with app based sleep tracking | Tech focused buyers; requires a subscription for full features |
BedJet 3 is a good choice if warmth matters to you as much as airflow. For cooling, BedJet uses ambient room air, just like the bFan, so the main differences are heating, the hose, and price. Two bFans cost less than half the price of a dual zone BedJet. Our BedJet alternative guide goes deeper.
The Chilipad Dock Pro and Eight Sleep Pod 5 can lower the temperature of the water in their pads, which is a different approach from moving air. They need water refills, tubing, and a control unit by the bed, and independent reviewers describe them as premium priced. If you want maximum control and do not mind the cost and maintenance, they are worth a look. If your main goal is night comfort without the complexity, an air based bed cooler is easier to live with.
Is a bed cooler better than a cooling pad or mattress topper?
A cooling pad or mattress topper can help, but it cannot move trapped heat out from under the covers the way airflow does. Passive products slow heat buildup, while a bed cooler actively carries it away.
A breathable mattress topper is a good first step if your mattress holds heat, and our guide to breathable mattress toppers explains what to look for. A gel cooling pad may feel cool at first and then warm up to body temperature. Pairing breathable bedding with an under sheet bed cooler gives you both a cooler surface and steady air movement for better sleep quality.
Who needs a bed cooler most?
Bed coolers help most for night sweats, menopause hot flashes, medication related overheating, and couples with different temperature needs. They are not medical devices, but they can make sleeping hot more comfortable.
Many bFan owners deal with night sweats or menopause. If your sweats are heavy, frequent, or come with fever or weight loss, talk with your doctor. Hot sleepers on memory foam, people in warm climates, and anyone trying to run the air conditioner less are also good fits. Read real stories on our Bedfan testimonials page.
How does a bed cooler help couples?
Couples can run two bFans, one centered below each sleeper, so each person controls their own side. Two bFans cost less than half the price of a dual zone BedJet.
When one partner runs hot and the other sleeps cold, separate airflow ends the thermostat battle. The air travels under the hot sleeper's covers, so the other side barely notices. Water based systems also offer dual zones, but at a much higher price.
How do you set up a bed cooler for the best night comfort?
Center the bFan at the foot of the bed, set the panel at mattress height, and tuck the top sheet lightly over it. Setup takes a few minutes and needs no tools.
- Measure from the floor to the top of your mattress and choose the short top (18 to 28 inches) or tall top (28 to 38 inches).
- Place the base on the floor, centered at the foot of the bed.
- Slide the panel under the bedding at mattress height.
- Plug in the power supply and turn it on with the remote.
- Drape the top sheet over the panel and tuck it lightly so air stays under the covers.
Tight weave sheets help the air travel the full length of the bed. Replacement remotes, power supplies, control boards, and adjustment tabs are sold separately if you ever need them.
Can a bed cooler lower your energy bill?
A bed cooler can help you run the air conditioner less, because you only target the bed. The bFan uses about 18 watts on average, so it costs pennies a night.
The Sleep Foundation puts the best bedroom temperature for most adults at about 65°F, but cooling a whole house to that level all night is expensive. Many bFan customers report they can raise the thermostat up to 6°F and still sleep comfortably. Our article on the ideal bedroom temperature for deep sleep has more on finding the right setting. The original Bedfan came to market several years before BedJet, and Bedfans USA has refined the design since 2004.
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
Which bed cooler is quietest at night?
Air based bed coolers like the bFan are often the quietest choice, because they use a small fan with no pumps or water flow. The bFan runs at about 28 to 32 dB at normal operating speed, which is similar to a soft whisper. Water based systems such as the Chilipad Dock Pro and Eight Sleep Pod 5 use a pump and fan in a bedside unit, and their sound varies by model and setting. Light sleepers should compare noise at the speed they will actually use.
Do water based bed coolers need maintenance?
Yes, water based bed coolers such as the Chilipad Dock Pro and Eight Sleep Pod 5 need regular care, including refilling the reservoir and, depending on the model, periodic cleaning to keep water lines fresh. Owners also need to route tubing between the bedside unit and the mattress pad or cover. Air based coolers like the bFan have no water to manage, so maintenance is mostly keeping the fan intake free of dust and pet hair. Plan a few minutes each month for whichever system you choose.
Can a bed cooler work with an adjustable bed or memory foam mattress?
Most bed coolers can work with memory foam, and memory foam sleepers often benefit the most because foam tends to hold heat. The bFan fits bed heights from 18 to 38 inches, measured from the floor to the top of the mattress, and needs about 6.75 inches of clearance under the foot of the bed, so measure first. 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. With an adjustable base, keep the foot section flat or check that the panel stays under the bedding when the bed moves. Water pads lie on the mattress surface and generally flex with it.
Is a bed cooler worth it if you already have air conditioning?
A bed cooler is often worth it even with air conditioning, because it targets heat trapped under the covers that a cool room cannot reach. Many hot sleepers find they wake up sweaty in a 68°F room because the comforter holds heat against their body. A bed cooler lets you keep the thermostat higher, which many bFan customers say saves money, while still improving sleep quality and rest for the person who runs hot. It also lets a cooler sleeping partner stay comfortable at the same thermostat setting.
How long does a bed cooler take to make a difference?
An air based bed cooler like the bFan usually makes a noticeable difference within minutes, because air starts moving under the sheets as soon as it turns on. Water based systems need time for the water to reach the set temperature, so many owners schedule them to start before bedtime. Your first few nights are a good time to try different speeds, sheets, and timer settings. Most people settle on a routine within a week. Keep notes on what you change so you can repeat the best nights.
Resources
- Sleep Foundation guide to the best temperature for sleep: explains why a bedroom around 65°F supports better sleep.
- Research review on thermal environment and sleep: a peer reviewed study in the Journal of Physiological Anthropology on how heat, humidity, and bed climate affect sleep.
- The Strategist review of cooling sleep systems: an independent hands on comparison of water based systems including Eight Sleep and the Chilipad Dock Pro.
- National Institute on Aging advice on hot flashes: lists practical steps for hot flashes and night sweats, including running a fan at night.
- Cleveland Clinic on night sweats causes and care: covers common causes and home tips such as a bedroom fan and lightweight bedding.
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