# Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket

Russell Hobbs RHBDB8004 is a double electric underblanket with Sherpa fleece, six heat settings and a claimed 10-hour automatic shut-off. At 135 x 190 cm, it is intended for double beds and has detachable controls and machine-washable-at-40°C care instructions.

- [Original product page](https://bargainpostbox.co.uk/product/russell-hobbs-rhbdb8004-double-sherpa-electric-underblanket)
- [View offer](https://bargainpostbox.co.uk/visit/russell-hobbs-rhbdb8004-double-sherpa-electric-underblanket)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Russell Hobbs
- Model: RHBDB8004
- Category: Home & Kitchen > Home Textiles > Bedding
- Price: 42.99 GBP
- Previous price: 77.99 GBP
- Discount: 45%
- Price checked: 2026-11-12T18:14:34.821Z
- Rating: 4.4 / 5
- Reviews: 66

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listed 135 x 190 cm dimensions and securing ties are intended to fit a double mattress.
- The listing claims six heat settings, two controls and an automatic shut-off after 10 hours.
- Care information says to disconnect the control before machine washing at 40°C.

## Pros

- Six settings and two controls are described, allowing each side to adjust its control separately according to the manufacturer.
- Sherpa fleece construction and secure ties suit buyers wanting a warm underblanket that attaches to a double mattress.
- Detachable controls and stated 40°C machine-washable care make cleaning practical when instructions are followed.

## Specifications

### Identity
- Brand: Russell Hobbs
- Model: RHBDB8004
- Size: Double
### Dimensions and installation
- Dimensions: 190L x 135W centimetres
- Weight listed: 2 Kilograms
- Fitting: DOUBLE BED – 135 x 190cm to fit a double mattress, with ties to secure and attach
### Heating and controls
- Heat settings: 6 Heat Settings - Luxury
- Automatic shut-off: 10-hour Auto Shut-Off, Detachable control, Machine washable at 40°C, Overheat protection
- Power: 120W
- Energy-use claim: ENERGY EFFICIENT - Run from as little as 5p\* per hour to keep you cosy through the night. \*Based on heating your bed for 1 hour on full power at 27p per kWh
### Materials and protection
- Material listed: Fleece
- Fabric construction: 280g Sherpa fleece with 70g filling, 400g non-woven polyester base
- Water resistance listed: Not Water Resistant
- Protection claim: SLEEP SAFE: This electric blanket features overheat protection and is BEAB approved for added peace of mind as well as featuring a beeper that will sound at every stage of heat change or when the blanket is turned on and off
### Care
- Washing instructions: Machine washable at 40°c, simply disconnect the control and follow the instructions provided

## Before you buy

- The listing identifies two controls in its manufacturer description, while the included-components list names only the blanket model and a user manual. Confirm the selected listing's supplied control count and exact bundle before purchase. The 5p-per-hour figure is a claim based on one hour at full power and an electricity rate of 27p per kWh, not a guaranteed running cost.

## In the box

- 1 x RHBDB8004 (Included)
- User manual (Included)

## A good fit for

- People looking for a heated underblanket sized for a double bed.
- Couples who want separately described controls and multiple heat settings.
- Buyers who prefer a fleece surface and machine-washable care, following the supplied instructions.

## Less suited to

- People needing a water-resistant heated blanket.
- Buyers requiring a confirmed two-control package without checking the selected listing's contents.

## Customer feedback

Customer feedback is positive about warmth and heating performance, and the controls are also appreciated. That feedback is relevant to the six-setting, two-control description for buyers seeking adjustable bed warming. Ratings are mostly five-star, with some lower ratings, so experiences are not uniformly positive.
- Positive themes: Customer feedback describes the blanket as getting very warm and heating efficiently.
- Positive themes: Customers appreciate the two control options.

## Frequently asked questions

### What size bed is the RHBDB8004 intended for?
The listing gives 135 x 190 cm and describes it as fitting a double mattress, with ties to secure it.
### How many heat settings and controls does it have?
The manufacturer description states six settings and two controls. The included-components list does not specify controls, so confirm the bundle details in the selected listing.
### Can the underblanket be machine washed?
The listed care instructions say it is machine washable at 40°C after disconnecting the control. Follow the instructions supplied with the product.
### What safety features are claimed?
The listing states overheat protection, BEAB approval and a 10-hour automatic shut-off. These are manufacturer claims, not independently verified here.

## Offer details

- The stated 5p-per-hour running cost is based on one hour at full power and 27p per kWh.
- The manufacturer claims a free one-year guarantee plus an extra year upon registration.

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## Add-ons

- [Russell Hobbs Electric Blanket, Sherpa Fleece Heated Double Fitted Underblanket, 6 Heat Settings & 10 Hour Auto Shut Off, Ene](https://bargainpostbox.co.uk/visit/russell-hobbs-rhbdb8004-double-sherpa-electric-underblanket)

## Images

![Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket — 1](https://bargainpostbox.co.uk/i/X4BrJ3guCqR4YGCjqHJwSHvFaSXKOLazP7BNYcsyxZPn7vGwPD6ZDHETaJtouEiqz8rQoBfA8CSc-l3C9BFQ7ViFQdVukDwFW8tzobGXwyxHyL2chFaYZdbE.jpg)

![Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket — 2](https://bargainpostbox.co.uk/i/qWg9BBKsiJDNI50IljJ6U0l7SORAvz8tmn4B9IxKDLwOf2EFQiqdVt8RjrSzyvFwE6DpfX-p_d2Lktnm454bnDPxtKGhPxkcJRHwMsLCX0nvJPB9Ayw2TzYL.jpg)

![Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket — 3](https://bargainpostbox.co.uk/i/lvQzcJXB6lKIqHQiN98ITR5rlzCjem9jF_43Dt6czDKwYe3TgpjVpCGp29c6Y6fEr9Shk4B_lcOu9FeQcmjbC1PysZuGwh2hE5R-z1wDGy35ndqs6DihO1t-.jpg)

![Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket — 4](https://bargainpostbox.co.uk/i/E6h4mNIKfypUnxqOozc-o7wyp0Aq7X0l3y9tZI0vCodXHDelOv3ITUB2FvgH9c8rS307tCOKIGFBAJbsHkaY_XTbvYctFjm3BX9i7nZf5SdVpcAx2yk8X4jc.jpg)

![Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket — 5](https://bargainpostbox.co.uk/i/ou8XjmaJ55oHvJH0FIPrcrB_aNsJfBVWOjZZGecAQbgX9-tTchUQYcKHd1uGytpPnzmHLAThnGQ6Ubwfn7Oz3bJp3ynwvtnO7cmAA7Po41udF6CcBXd4b23a.jpg)

![Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket — 6](https://bargainpostbox.co.uk/i/I_nHYovstdnuZpU43y6qeNWTsf3_Z4qhWhRq7r1WGuuqtjegHOVVMOnqqcmrq2v4Uu0r_jvbqE4R453wV3D1JsYbwTp1TTKmDQgc-jOA6xHrhr_D6fNlvgw_.jpg)

![Russell Hobbs RHBDB8004 Double Sherpa Electric Underblanket — 7](https://bargainpostbox.co.uk/i/BHWlH1GqWA5Yjmlzvwmf1i0X6e0RE4TO3bXW6PfP9ohyIIrvNiRO-j1dv0k6q8Ivnwgh0aaWtOVaawjfV0J-mHU7VVF4DBzhLEhEJ6iw0XdRkAB_jQmcDuXS.jpg)