Cheapest electric blanket tariff in the UK this winter

There isn’t a special “electric blanket tariff” — but you can cut the cost of running an electric blanket by choosing the right electricity tariff for your meter, usage pattern and payment method.

  • See which tariff types tend to work out cheapest for overnight heating
  • Estimated running costs with realistic UK unit-rate examples (with caveats)
  • Compare deals across the whole market with a trust-led quote form
Get your electricity quote How to choose the right tariff

Estimates only. Your costs depend on your blanket wattage, how long you use it, your tariff unit rate (p/kWh), and your standing charge. Terms vary by supplier and region.

Fast answer: what’s the cheapest “electric blanket tariff” in the UK?

In the UK, the cheapest way to run an electric blanket is usually not a special tariff, but one of these electricity tariff approaches (depending on your meter and when you use the blanket):

1) A competitive single-rate tariff

Best for most homes where blanket use is modest (a few hours) and you don’t have a clear overnight-heavy pattern.

2) A time-of-use tariff (e.g., off-peak hours)

Can help if you use the blanket mainly overnight and your meter supports time-of-use pricing. Not always cheapest overall.

3) Economy 7 / multi-rate (only if it fits your setup)

May reduce overnight unit costs but often has higher daytime rates. Works best when a meaningful chunk of usage is off-peak.

Key point: An electric blanket typically uses low power (often 50–200W while heating; some cycle lower once warm). Because the cost is small compared with your overall bill, the “cheapest electric blanket tariff” is really the cheapest suitable electricity deal for your whole home — with the right tariff structure for when you use energy.

Quick running-cost rule of thumb

Cost per hour ≈ (Blanket watts ÷ 1000) × unit rate (in £/kWh).

Example: 100W blanket for 2 hours at 28p/kWh ≈ 0.1kW × 2 × £0.28 = £0.06.

What most people miss

  • Standing charge can dominate savings from a small appliance.
  • Meter type (single-rate vs Economy 7 vs smart) changes what tariffs you can access.
  • Payment method (Direct Debit vs prepayment) affects pricing and availability.

Compare tariffs that can reduce overnight heating costs

If you use an electric blanket regularly through winter, you’ll usually do better by choosing a tariff that matches your whole-home pattern (not just one device). We’ll show options across the market based on your postcode, meter type and payment preference.

Tip: If you’re not sure whether you’re on Economy 7 / multi-rate, check your bill for two electricity unit rates (day and night) or look at your meter display cycles.

How to choose the “cheapest” option for your situation

If you use the blanket before bed (evenings)
A strong single-rate tariff often wins, because evening use is typically at the standard rate anyway.
If you keep it on low overnight
A time-of-use or Economy 7-style tariff can reduce the unit price for those hours — but only if the rest of your home’s usage doesn’t get more expensive overall.
If you’re on prepayment
Choice can be narrower and prices can differ. Comparing by postcode + meter type is the safest way to find the best value available to you.

Two realistic winter scenarios (with numbers)

Scenario A: Warming the bed only

  • Blanket: 120W
  • Use: 30 minutes per night
  • Tariff example unit rate: 28p/kWh (single rate)
  • Winter period: 120 nights (approx Nov–Feb)

Estimated cost: 0.12kW × 0.5h = 0.06kWh/night → 0.06 × £0.28 = £0.02/night → ~£2.02 over 120 nights.

Interpretation: switching tariffs purely for blanket savings is unlikely to be worth it — focus on overall bill value and standing charge.

Scenario B: Overnight low heat

  • Blanket: 150W (cycles; we assume average 75W once warm)
  • Use: 8 hours overnight
  • Tariff example: 15p/kWh off-peak vs 28p/kWh standard
  • Winter period: 120 nights

Estimated energy: 0.075kW × 8h = 0.6kWh/night.

Estimated cost: at 28p = £0.17/night (~£20.16/season); at 15p = £0.09/night (~£10.80/season).

Interpretation: off-peak can help if you genuinely shift usage and your overall deal (including day rate + standing charge) stays competitive.

Important: These examples use illustrative unit rates. Actual rates vary by region (e.g., North vs South), supplier, payment method, and whether you’re on a fixed or variable tariff. Always compare the full tariff (unit rate(s) + standing charge + any fees).

Get a tailored quote (whole of market)

Share a few details and we’ll match you to tariffs that suit your meter and usage — including options that can be cheaper for overnight electricity where available.

Start your comparison

By submitting, you confirm this is for a UK home energy comparison. We’ll use your details to provide quotes and contact you about your comparison. You can opt out at any time.

What you’ll get: a shortlist of suitable tariffs (including fixed and variable options where available), with clear unit rates, standing charges, and any exit fees shown where provided by suppliers.

Tariff types compared (for electric blanket use)

Use this as a practical guide. The best choice depends on your meter and whether you can reliably use more electricity in cheaper off-peak windows.

Tariff type When it can be cheapest Watch-outs Who it suits
Single-rate (standard) If most usage is daytime/evening and blanket use is small or mixed. No special cheap hours; savings rely on overall competitive unit rate + standing charge. Most households; renters who want simple billing.
Fixed single-rate When fixed pricing is competitive for your region and you value bill stability through winter. May include exit fees; may miss out if prices fall later. People who prefer predictable rates and plan to stay put.
Time-of-use (off-peak windows) If you can shift meaningful usage to off-peak (blanket overnight + other loads). Peak rates can be higher; eligibility can depend on smart meter and supplier. Households with predictable overnight use, and flexibility for other appliances.
Economy 7 / multi-rate If a sizeable portion of electricity is used overnight (not just the blanket). Day rate may be significantly higher; off-peak times vary by region/meter. Homes already set up for E7 (often with storage heating) or strong overnight use.
Prepayment tariffs When the best available PAYG deal is competitive in your postcode. Less choice; ensure you compare standing charges and check any rules for smart PAYG top-ups. Tenants and anyone who prefers pay-as-you-go budgeting.

Decision checklist (quick)

  • Meter: single-rate, Economy 7, or smart time-of-use eligible?
  • Use pattern: is your blanket mostly overnight or evening?
  • Standing charge: compare it carefully (it can outweigh small usage savings).
  • Exit fees: on fixes, can you commit for the term?
  • Payment: Direct Debit vs prepay availability in your region.

Who it suits / who it doesn’t

Likely suits

  • Regular overnight blanket users
  • Economy 7 homes already
  • People happy to compare full bills, not just unit rates

May not suit

  • Very light blanket use (e.g., 10–30 mins)
  • Homes with high daytime electricity demand (TOU/E7 can backfire)
  • Anyone who can’t change meter/tariff type easily (tenancy constraints)

Costs, exclusions and common pitfalls (UK-specific)

Standing charge can dwarf blanket costs

An electric blanket often costs pennies per night. A small unit-rate improvement may matter less than a higher standing charge across the year.

Economy 7 timings vary

Off-peak hours aren’t the same for everyone and can depend on your region and meter configuration. Don’t assume it’s always midnight–7am.

Time-of-use tariffs aren’t “cheap all day”

Some TOU deals have higher peak rates. If most of your usage is during peak hours, total costs can rise even if overnight is cheaper.

Don’t over-estimate the blanket’s wattage

Many blankets cycle on/off or reduce power once warm. If you calculate costs as if it’s drawing full power all night, you may overstate the savings from switching.

Practical check: look at the label/manual for wattage, and consider using a plug-in energy monitor for a few nights to estimate average consumption.

Safety and health considerations (not tariff-related)

  • Follow manufacturer instructions and replace older blankets if advised.
  • Avoid using with a damaged cord, controller or visible wear.
  • If you have a medical condition or reduced sensation, seek advice on safe use.

EnergyPlus provides tariff guidance; we’re not a medical or electrical safety authority.

Switching caveat: If you’re in debt to your current supplier, have a complex meter setup, or are on certain support arrangements, switching may be restricted. Citizens Advice explains your options and protections.

FAQs

Is there an electric blanket tariff in the UK?

No. Suppliers don’t offer a tariff specifically for electric blankets. The best option is the cheapest suitable electricity tariff for your home, considering unit rate(s), standing charge, meter type and when you use energy.

Are Economy 7 tariffs always best for overnight blanket use?

Not always. Economy 7 can reduce the cost of overnight electricity, but daytime rates can be higher. If your household uses most electricity during the day/evening, Economy 7 may increase your total bill.

How do I know if my blanket use is “enough” to justify a time-of-use tariff?

A blanket alone often won’t be enough, because it’s a relatively low-power appliance. Time-of-use tariffs tend to make sense when you can shift other usage too (for example, laundry, dishwashing or EV charging) into off-peak hours. Compare the whole bill impact, not just the off-peak rate.

Do I need a smart meter for off-peak/time-of-use tariffs?

Often, yes — many time-of-use tariffs require a smart meter to measure half-hourly consumption. Economy 7 typically uses a multi-rate meter (which may be smart or traditional). Availability varies by supplier and region.

Will switching tariff affect my standing charge?

Yes. Standing charges vary by tariff, supplier, region and payment method. If you’re optimising for a low-usage device like an electric blanket, always check standing charge changes as they can outweigh unit-rate savings.

Can I switch if I rent or live in a flat?

Usually yes, as long as you pay the energy bills and have your own meter. If bills are included in rent or you’re on a shared/landlord supply, you may not be able to choose the tariff. Meter access and tenancy terms can also affect smart meter installation.

Is it cheaper to heat the bed with an electric blanket than heating the whole room?

Often, yes — an electric blanket typically uses far less energy than space heating. But the exact comparison depends on your heating system (gas, heat pump, electric heaters), room heat loss, thermostat settings and comfort needs. Treat blanket costs as a small part of your overall winter bill.

Are prepayment customers eligible for the same cheapest deals?

Not always. Deal availability and pricing can differ for prepayment (including smart PAYG) versus Direct Debit. Comparing using your postcode and payment method is the best way to see what’s currently available to you.

Trust, methodology and sources

Page details

How we assess the “cheapest” option

Because suppliers don’t price “electric blanket tariffs”, we assess what’s cheapest by looking at tariff structures that can reduce the unit cost of electricity at the hours you’re likely to use an electric blanket, while still being good value overall.

  • Tariff types considered: single-rate, fixed, Economy 7/multi-rate, and time-of-use (where available).
  • Key variables: region (postcode), payment method, meter type, unit rate(s), standing charge, and any exit fees.
  • Usage logic: electric blankets are low-consumption; savings are usually limited unless you’re shifting other usage too.

Limitations: The scenario numbers on this page are illustrative estimates. Real-world costs depend on blanket thermostat cycling, the actual unit rate(s) you pay, and how your supplier defines peak/off-peak windows. Always confirm tariff details in the supplier’s T&Cs before switching.

Recommended UK sources

Ofgem (energy regulator)

Ofgem guidance and consumer information

Ready to find a cheaper electricity tariff for winter?

Compare whole-of-market electricity deals for your postcode and meter type. We’ll highlight options that can work well for overnight usage where available.

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Updated on 29 Apr 2026