The Best Heated Blankets for Camping, and Which Socket Yours Has to Plug Into
There are two kinds of heated blanket and they are not interchangeable. A 12V blanket plugs into a car socket; a 120V throw needs a household outlet or an inverter. Buy the wrong one and you own a blanket with a plug you cannot use.
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Quick picks
#
Product
Best for
Price
1
Best overall
Sealy 12-Volt Heated Car Blanket
59 by 43 in with three heat levels, a 4-hour auto-off, an 85 in cord, machine washability, and the only listing here that explicitly names power-station use.
Sitting out a cold evening in the car or a camp chair, powered from a 12V socket or a power station
Best budget pick, and the only one that publishes temperatures
Stalwart Heated Car Blanket
59 by 43 in with two heat levels at published temperatures — low 85 to 95 F, high 95 to 104 F, reaching maximum in 5 minutes — on a 78 in cord.
The cheapest way to find out whether you want a heated blanket
12V or 120V: decide this before you look at blankets
The short answer
A 12V heated blanket plugs into a vehicle's cigarette-lighter socket, or a power station that has one. A 120V heated throw needs a household outlet — a powered campsite, an RV, or a power station with an AC output. They are not adapters apart; they are different products, and the socket you have decides which one you can buy.
Three of the four blankets on this page are 12V and one is 120V, and that ratio reflects the market: most “camping” heated blankets are car blankets. If your camping is a car at a dispersed site, you want 12V. If it is a campground with hookups or a power station with an AC outlet, the 120V household throws are better made and better warrantied.
Compared on published numbers
Blanket
Power
Size
Heat
Auto-off
Cord
Washable
Sealy 12-Volt
12V socket; power station named
59 x 43 in
3 levels
4 h
85 in
machine, low-heat dry
Westinghouse
12V socket
59 x 43 in
3 levels
4 h
85 in
machine cold, air dry
Sunbeam Royal Ultra
120V household outlet
50 x 60 in
4 settings
4 h
not published
machine and dryer safe
Stalwart
12V aux socket
59 x 43 in
2 levels, 85-95 F and 95-104 F
not published
78 in
spot clean only
Figures as published by each maker on 2026-10-17. Not one of the four publishes a wattage or current draw, and only Stalwart publishes surface temperatures.
The missing column in that table is the important one. Nobody publishes a wattage, which means nobody can tell you from the box how long a given power station will run their blanket. That is a real gap and we are not going to fill it with an estimate.
How to find the draw yourself, in one minute
You do not need the maker to publish a wattage, because your power station will tell you. Plug the blanket in, turn it to high, and read the output figure on the station's display in watts. Then divide the station's capacity in watt-hours by that number and you have the runtime in hours, minus roughly 10 to 15% for conversion losses.
Do it once, write the number on a note, and you never have to wonder again. The same method and the same arithmetic covers every other appliance in a camp kit — what size power station do I need works through it in full, and best power inverters for camping covers the 12V-to-120V conversion if you want to run the Sunbeam from a vehicle.
Never run a 12V blanket off the starter battery with the engine off
A car's starter battery is designed to deliver a very large current for a few seconds, not a small current for hours, and discharging one deeply damages it and may leave you unable to start the car. If you want hours of heat at a campsite, run it from a leisure battery or a power station, not from the socket on a parked car. The safe-use rules for everything you plug in at a campsite are in best extension cords for camping, and the fire side of heat at a campsite is in carbon monoxide and stove safety when camping.
A heated blanket is not a tent heater, and that is a safety point
At a published maximum of 104 F, a heated blanket cannot warm the air in a tent — it can only slow the heat leaving the person under it. That is a limitation on paper and an advantage in practice, because the alternatives are worse. A propane tent heater burns fuel and consumes oxygen inside a fabric enclosure, which is why that page leads with oxygen-depletion sensors and CO detectors. An electric blanket has no combustion, no exhaust and no carbon monoxide.
Do not sleep under one in a tent, though. All four here carry a 4-hour auto-off precisely because unattended overnight use is not the intended application, and none of them is designed to be slept on or folded while running. For sleeping warmth the answer is insulation underneath you — sleeping pad R-value explained has the numbers, and best camping blankets covers the unpowered version of this purchase.
What to buy
Buy the Sealy 12-Volt Heated Car Blanket. Same size, levels and timer as the Westinghouse, machine washable, an 85 in cord, and the only maker here that explicitly names power-station use.
Buy the Westinghouse if its price is close and the 180 gsm fleece appeals. Buy the Sunbeam Royal Ultra if you camp with hookups or an AC power station — it is the better-made blanket and the warranty says so. Buy the Stalwart to find out cheaply whether you want one at all, and accept that you cannot wash it.
And know what you are buying. A heated blanket makes a cold evening in a camp chair pleasant. It does not heat a tent, it does not replace a sleeping bag, and on a car socket it does not run all night.
The picks in full
1. Best overall
Sealy 12-Volt Heated Car Blanket
Sealy
59 by 43 in with three heat levels, a 4-hour auto-off, an 85 in cord, machine washability, and the only listing here that explicitly names power-station use.
Sealy publishes 59 by 43 in, three heat levels, a 4-hour auto-off, an 85 in heavy-duty insulated cord, overheat protection, machine washability with low-heat drying once the controller is detached, and compatibility with any car, truck, SUV or RV 12V socket — plus, explicitly, a portable power station equipped with a cigarette-lighter socket.
That last clause is why this is the pick. Every 12V blanket on the market will physically run off a power station with a 12V socket, but this is the only one here whose maker says so, which means you are not guessing about the intended use. If you already own a power station, this blanket plus that station is a heated campsite with no engine running.
The 85 in cord is the other practical figure. A heated blanket on a short cord reaches the front seat and nothing else; seven feet reaches a chair pulled up beside the open tailgate, which is where you actually want to sit.
The drawback
No wattage is published, so you cannot calculate how long a power station will run it. A 12V blanket in a parked car also means running the engine or draining the starter battery, which is the real constraint nobody prints on the box.
Published specs
Size
59 x 43 in
Power
12 V vehicle socket; the listing names power stations with a socket too
Heat
3 levels
Timer
4 h auto-off
Cord
85 in
Care
machine washable, low-heat dry; detach the controller first
59 by 43 in of double-layer 180 gsm polar fleece, three heat levels, 4-hour auto-off and an 85 in cord, washable cold.
Westinghouse publishes 59 by 43 in, a 12V socket plug, three heat settings, a 4-hour auto shut-off, double-layer 180 gsm polar fleece, an 85 in cord, overheat protection, and machine washing in cold water with air drying once the controller is unplugged.
The 180 gsm figure is the only published fabric weight in this group, and it is worth something: a heated blanket is still a blanket, and when the power is off the only thing keeping you warm is the fleece. Double-layer 180 gsm is a substantial fleece, not a novelty throw with wires in it.
Otherwise this and the Sealy are functionally the same product, and the choice between them is price against fabric. If the Sealy is cheaper when you look — check the live prices on both buttons — buy the Sealy, because the power-station note is worth more than 180 gsm.
The drawback
Costs more than the Sealy for the same dimensions, heat levels and timer, and Westinghouse publishes no wattage either. Air-dry only, where the Sealy permits a low-heat tumble.
Published specs
Size
59 x 43 in
Power
12 V vehicle socket
Heat
3 levels
Timer
4 h auto-off
Fabric
double-layer 180 gsm polar fleece
Cord
85 in
Care
machine wash cold, air dry; detach the controller first
50 by 60 in with four heat settings, a 4-hour auto shut-off, cETLus certification, a 5-year limited warranty, and machine-wash-and-dry care.
Sunbeam publishes 50 by 60 in, four heat settings (warm, low, medium and high), a 4-hour auto shut-off with overheat protection, 100% polyester fleece, machine washing and dryer safety with the controller detached, cETLus certification and a 5-year limited warranty. It plugs into a 120V household outlet.
This is the one to buy if your camping involves a powered site, an RV with an inverter, or a power station with an AC outlet — and it is a genuinely better blanket than the 12V options: four settings instead of three, a five-year warranty, dryer-safe, and built to household appliance certification.
It is on this page largely to be ruled out, though. Household heated throws are what people buy by accident when they search for a camping blanket, and discovering at the campsite that the plug does not fit the car is the single most common failure in this category.
The drawback
It runs on 120V, so it will not work from a car socket at all — a point this page exists partly to make. Sunbeam publishes no wattage, so you cannot size a power station for it on paper.
Published specs
Size
50 x 60 in
Power
120 V household outlet, NOT 12 V
Heat
4 settings: warm, low, medium, high
Timer
4 h auto shut-off, plus overheat protection
Fabric
100% polyester royal ultra fleece
Care
machine washable and dryer safe; detach the controller
4. Best budget pick, and the only one that publishes temperatures
Stalwart Heated Car Blanket
Stalwart
59 by 43 in with two heat levels at published temperatures — low 85 to 95 F, high 95 to 104 F, reaching maximum in 5 minutes — on a 78 in cord.
Stalwart publishes 59 by 43 by 0.25 in, a 12V aux socket plug, two heat levels at low 85 to 95 F and high 95 to 104 F, a maximum of 104 F reached in 5 minutes, a 78 in cord, a flannel face with a polyester sherpa back, and spot cleaning only.
Stalwart is the only maker in this group that publishes actual surface temperatures, and those numbers are informative for the whole category: 104 F at maximum is barely above body temperature. A heated blanket is not a heater. It stops you losing heat and adds a little back; it will not warm a cold car or a tent.
Spot-clean-only is the reason this is the budget pick rather than the value pick. A blanket that lives in a car, goes to campsites and gets used by children is a blanket that needs washing, and the two machine-washable options above are worth their premium for that alone.
The drawback
Spot clean only; this one is not machine washable, which on a blanket used around food and campfires is a real limitation. Two heat levels rather than three, and the shortest cord here.
Yes, if you have the right socket. A 12V heated blanket runs from a vehicle's cigarette-lighter socket or a power station that has one; a 120V heated throw needs a powered campsite, an RV or a power station with an AC outlet. The two are not interchangeable, and that is the first decision to make.
QWill a heated blanket drain my car battery?
Yes, if you run it with the engine off. A starter battery is built to deliver a huge current briefly, not a small one for hours, and deep-discharging it both damages the battery and risks not being able to start the car. For hours of heat, use a leisure battery or a portable power station.
QHow many watts does a 12V heated blanket use?
None of the four blankets on this page publishes a wattage or current draw, so there is no honest figure to quote. The practical workaround is to plug it into a power station on its highest setting and read the watts off the station's own display, then divide the station's watt-hours by that number for the runtime.
QHow hot does a heated car blanket get?
Stalwart is the only maker here that publishes temperatures: low is 85 to 95 F and high is 95 to 104 F, reaching maximum in about 5 minutes. That is barely above body temperature, which is why a heated blanket slows heat loss rather than warming a space.
QCan you sleep with a heated blanket in a tent?
It is not what they are designed for. All four carry a 4-hour auto shut-off specifically because unattended overnight use is not the intended application, and none is meant to be slept on or run while folded. For sleeping warmth, insulation underneath you does far more than any powered blanket.
How we picked
Everyone else in this category will tell you they tested twenty of these. We have not tested any of them, and we would rather say so than pretend. There is no gear closet here and no test lab.
What we did instead: pulled the published specifications from each manufacturer's own spec sheet or manual, named the standard behind every rating so you can check what it actually promises, did the arithmetic that turns a spec into a decision, and pulled today's real retail price rather than quoting one from memory. Every pick states a drawback, because a list where nothing is wrong with anything is an advert.
The limits of that method, stated plainly: published specs do not capture zipper quality, seam durability, or how a tent behaves at 2am in a storm. Where that matters, we say so on the pick. The full method is here.
