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Best electric blankets and heated throws

We've tested electric blankets and heated throws from Dreamland, Lakeland, Russell Hobbs, Silentnight and more
Jonny MartinResearcher & writer

We've tested heated throws and electric blankets ranging in price from £40 to £150, so we can tell you the best ones to keep you warm this winter. 

While testing, we found big differences in how quickly and evenly electric blankets and heated throws heat up, how much energy they use and how quickly they change temperature when you make an adjustment. 

Also, be aware that the running cost claims on the box are often based on the blanket's lowest power setting, which our testing revealed hardly heats the blankets up at all. You can see the real running costs based on the blankets highest settings in the table below. 

The best electric blankets from our test

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Electric blanketsHeat-up timeCost per hour*

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Fast4p
Fast6p
Very fast6p
Fast2p
Fast4p
Fast3p
Fast2p
Average4p
Average2p
Slow2p
Average3p

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Dates tested: August 2023 and October 2022. We're not able to show every retailer and cheaper prices may be available.

*Cost per hour is based on using the blanket on its highest setting because, following our testing, we think that this is the setting you're more likely to use.

The electric blankets we've tested

All the electric blankets we tested are listed in alphabetical order below. 

Only logged-in Which? members can view the best electric blankets from our tests. 

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Bedsure Fitted Electric Blanket Double

Bedsure Fitted Electric Blanket Double

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Most recently tested September 2022

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Number of controls 1

Sizes available Single, double, king

Cosi Home Electric Blanket Double

Cosi Home Electric Blanket Double

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Most recently tested August 2023

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Number of controls 1

Sizes available Single, double, king

Dreamland Organic Cotton Double Heated Mattress Protector

Dreamland Organic Cotton Double Heated Mattress Protector

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Most recently tested September 2022

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Number of controls 2

Sizes available Single, double, king, super king

Glamhaus Super King Fitted Electric Blanket

Glamhaus Super King Fitted Electric Blanket

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Most recently tested September 2023

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Number of controls 2

Sizes available Single, double, king, super king

Mylek Deluxe Double Electric Fitted Blanket

Mylek Double Electric Fitted Blanket

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Most recently tested September 2023

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Number of controls 2

Sizes available Single, double, king, super king

Russell Hobbs RHEDB8002 Double

Russell Hobbs RHEDB8002 Double electric blanket

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Most recently tested September 2022

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Number of controls 2

Sizes available Single, double, king

Silentnight Comfort Control Electric Underblanket

Silentnight Comfort Control Electric Underblanket

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Most recently tested September 2022

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Number of controls 1

Sizes available Single, double, king

SlumberdownSleepy Nights Electric Blanket Double

Slumberdown Warm Hugs Electric Blanket Double

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Most recently tested August 2023

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Number of controls 2

Sizes available Double

Slumberdown Wonderfully Warm Double

Slumberdown Wonderfully Warm Double electric blanket

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Most recently tested August 2023

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Number of controls 2

Sizes available Single, double, king, super king

Snuggledown Intelligent Heated Underblanket

Snuggledown Intelligent Warmth Supreme Comfort Heated Electric Underblanket

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Most recently tested September 2022

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Number of controls 1

Sizes available Single, double, king, super king

Get a comfy night's sleep - consult our mattress reviews, see our pick of the best pillows and what we rated the best eye masks for sleep

The best heated throws from our test

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Heated throwsHeat-up timeCost per hour*Where to buy

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Fast3p
Average4p
Average5p
Fast3p
Very fast4p
Fast3p
Average4p
Average2p
Fast3p
Average3p
Fast4p

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Dates tested: August 2023 and October 2022. We're not able to show every retailer and cheaper prices may be available.

*Cost per hour is based on using the blanket on its highest setting because, following our testing, we think that this is the setting you're more likely to use.

The heated throws we've tested

All the heated throws we tested are listed in alphabetical order below. 

Only logged-in Which? members can view the best heated throws from our tests. 

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Beurer Nordic Heated Throw

Beurer Nordic Heated Throw

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Most recently tested September 2022

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Cord length 2 metres 57cm

Dreamcatcher Heated Throw

Dreamcatcher Heated Throw

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Most recently tested August 2023

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Cord length 2 metres 30cm

Dreamland Alaskan Husky Faux Fur

Dreamland Alaskan Husky Faux Fur

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Most recently tested August 2023

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Cord length 3 metres 80cm

Cosi Home Fleeced Throw

Cosi Home Fleece Throw

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Most recently tested September 2022

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Cord length 2 metres 40cm

Dreamland Heated Throw

Dreamland Heated Throw

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Most recently tested September 2022

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Cord length 3 metres 76cm

Dreamland Herringbone Pattern Emerald Heated Throw

Dreamland Herringbone Pattern Emerald Heated Throw

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Most recently tested August 2023

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Cord length 3 metres 76cm

Dreamland Luxury Heated Throw Teal

Dreamland Luxury Heated Throw Teal

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Most recently tested August 2023

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Cord length 3 metres 60cm

Glamhaus Heated Throw Blanket

Glamhaus Heated Throw Blanket

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Most recently tested August 2023

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Cord length 2 metres 20cm

Lakeland Sherpa Heated Throw Teal

Lakeland Sherpa Heated Throw Teal

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Most recently tested September 2022

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Cord length 2 metres 40cm

Lakeland Velvety Green Heated Throw

Lakeland Velvety Green Heated Throw

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Most recently tested August 2023

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Cord length 2 metres 30cm

Lakeland The Snuggler Heated Throw

Lakeland The Snuggler Heated Throw

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Most recently tested September 2022

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Cord length 2 metres 40cm

How we test electric blankets and heated throws

Electric blanket testing

To test electric blankets and heated throws, we've designed a test that captures how quickly and evenly each blanket heats up.

We also factor in how comfortable each blanket is, according to a panel of volunteers. 

Finally, we take into account the durability of each blanket by washing and drying it five times after testing. 

  • Heat-up time We attach temperature sensors to six different locations on each electric blanket or heated throw and record how quickly each blanket heats up over a 20-minute period. The best blankets heat up twice as fast as the worst. 
  • Heat distribution Using the six temperature sensors, we record how evenly each blanket heats up. Most heat up evenly, but some have irregular hot and cold spots.
  • Responsiveness Once the electric blanket or heated throw has reached its maximum temperature, we adjust the temperature setting and recorded how responsive each blanket is. 
Woman sleeping under electric blanket
  • Comfort A panel of five volunteers assesses each electric blanket and heated throw for comfort. There is quite a big difference in how snuggly each one is and underwires are more noticeable in some of them. For electric blankets, we also assess how easy each one is to attach to a mattress and how comfortable each one is to lie on under a fitted sheet.
  • Energy use We attach each electric blanket and heated throw to an energy monitor and record how much money it costs to run on its highest setting. Prices range from 2p to 7p an hour. We do the same for each one on its lowest setting, but this results in such low temperature increases that we don't think it's a realistic setting for keeping warm. We used the RS PRO energy meter, £28, from RS Components. If you're interested in measuring your electric blanket, throw or other appliances around your home, you can buy similar meters starting from around £18 from popular retailers such as Amazon and Screwfix.
  • Durability After testing, each electric blanket and heated throw is washed and dried five times to simulate wear and tear. We then conduct a full electrical safety test on each one. None showed significant wear and tear, and all passed the test.

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Smart meter

How much does it cost to run an electric blanket?

In many adverts for electric blankets or heated throws, manufacturers claim that blankets cost 'pennies to run', but what does this actually mean? 

On their highest settings, we found that electric blankets cost anywhere between 2p and 7p an hour to run. For heated throws, the range is from 2p to 5p. 

This means that if you have an electric blanket on every night for three hours, for six months of the year, the most expensive to run would cost you £38.33 in energy, while the cheapest costs £10.95, which is a saving of £17.38.

Switching on an electric blanket

Are electric blankets safe?

If you buy your blanket from a reputable UK retailer, as we did for our tests, then it should be safe. 

But take extra care if you buy from an online marketplace, as some have been known to stock potentially unsafe electric blankets that can't be sold legally in the UK.

As part of our test, we washed and tumbled dried each of the blankets five times after testing, and then conducted a full electricity safety test. All the blankets passed. 

Any risk posed by electric blankets tends to come from disreputable online sellers, or old blankets that have become worn and unsafe. If you have an old electric blanket that's showing signs of wear or has visible wires, it could be time for a change. 

What should I look for in an electric blanket?

  • How comfy is it and can you feel any wires?
  • What are the running costs? 
  • How long is the cord to ensure you can plug it in without needing an extension lead? 
  • What's the heat up time? 
  • How good is the heat distribution? 
  • Can it be washed? 

We record all these key things to look for in an electric blanket in our reviews above. 

What is better than an electric blanket?

If you want to keep warm in bed without shelling out for an electric blanket, a cheaper option is a hot water bottle. The good news is that you don't need to splash out on a pricey one thinking that will keep you warmer. Our testing discovered paying more doesn't mean you'll stay warmer. Do make sure the cover is good so your bottle retains the heat for longer. See how the running costs of an electric blanket compare to the cost of boiling your kettle for a hot water bottle in: Hot water bottle or electric blanket, what's best and cheapest for keeping you warm in bed.