# Straame Heated Underblanket, Double, 135 × 120 cm

Straame Heated Underblanket is a double-size electric underblanket intended to lie flat on the mattress beneath normal bedding. Its detachable controller offers four heat settings, with a stated 10-hour automatic shut-off. The listing gives conflicting size and care details, so confirm these before choosing it for a particular bed or washing routine.

- [Original product page](https://bargainpostbox.co.uk/product/straame-double-heated-underblanket-135x120)
- [View offer](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Straame
- Model: Heated Underblanket
- Category: Home & Kitchen > Home Textiles > Blankets & Duvets
- Price: 21.24 GBP
- Previous price: 35.99 GBP
- Discount: 41%
- Price checked: 2026-11-14T10:10:13.486Z
- Rating: 4.1 / 5
- Reviews: 13

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

- A single detachable controller provides four choices: Warm, Low, Medium and High.
- The listing states overheat protection and automatic shut-off after 10 hours.
- Four tie-down loops are specified to help keep the blanket flat on the mattress.
- The textile is described as machine washable after removing the controller.

## Pros

- Four heat settings allow adjustment through the supplied controller.
- The stated automatic shut-off and overheat protection are relevant features for bed warming.
- Tie-down loops are specified for positioning the underblanket beneath normal bedding.

## Specifications

### Identity
- Brand: Straame
- Model: Heated Underblanket
### Size and installation
- Size: Double
- Dimensions in title and feature text: 135 x 120 cm
- Dimensions listed in details: 120L x 60W centimetres
- Weight listed: 1500 Grams
- Securing method: four tie-down loops
### Heating and operation
- Power: 85 W
- Heat settings: Warm, Low, Medium and High
- Automatic shut-off: 10 hours
- Supply: 220–240 V AC, 50 Hz
- Insulation: Class II double insulation
### Materials and care
- Material listed: Fleece, Polyester
- Textile material claim: 100% polyester
- Wash temperature and method in feature text: up to 40°C or hand washable
- Care instructions in details: Do Not Dry Clean, Do Not Iron, Do Not Tumble Dry, Machine Washable On Gentle Cycle, Remove Controller Before Washing, Wash At 30 Degrees Celsius

## Before you buy

- The listing is inconsistent about dimensions: the title and feature text say 135 x 120 cm, while details give 120L x 60W centimetres. It also describes this as double in the title and features but calls the listing single in the longer description, which gives a separate single size of 135 × 65 cm and power of 40 W. The double specification elsewhere is 135 × 120 cm and 85 W. Care instructions conflict between 30 degrees Celsius and up to 40°C. Confirm the selected size and washing limit before purchase. The manual guidance says not to use it while sleeping, to keep the pillow area clear and to avoid folds or creases. Use only the supplied controller and ensure the blanket is completely dry before use.

## In the box

- Controller (Included)
- Heated underblanket (Included)
- Power cable (Included)

## A good fit for

- Buyers seeking an underblanket with four selectable heat settings and a detachable controller.
- People who want a stated double-size blanket with tie-down loops, after confirming the dimensions against their mattress.

## Less suited to

- Buyers who need independently confirmed dimensions or a clearly consistent washing temperature.
- Anyone looking for a blanket the listing says is suitable to leave on while sleeping.

## Customer feedback

Aggregate ratings are generally favourable but include a notable lower-star share. With a small rating sample and no written feedback supplied, these figures cannot explain what customers liked or disliked, or establish how well the blanket performs. Consider them alongside the unresolved listing details, especially the size and care instructions.

## Frequently asked questions

### What size is this Straame underblanket?
The title and feature text state 135 x 120 cm, but the details give 120L x 60W centimetres and the longer description also calls the listing a single model. Confirm the selected size before buying.
### How many heat settings does it have?
The feature text lists Warm, Low, Medium and High, controlled with one detachable controller.
### Can it be machine washed?
The listing says to remove the controller before washing, but gives conflicting limits of 30 degrees Celsius and up to 40°C. It also advises against tumble drying, ironing, bleaching, dry cleaning and wringing. Check the manual for the correct care limit.
### Is it intended to be used while sleeping?
The longer description says the manual recommends not using the appliance while sleeping. It also advises keeping the pillow area clear and avoiding folds or creases.

## Alternative options

- [Electric Blanket Double, Heated Underblanket, Dual Control, Fully Fitted \| Heated Mattress Topper, 9 Heat Settings, 2/4/6/10 Hours Auto-Off, Fast Heat Up, Over-Heat Protection, Washable, 135x190cm](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [COZYXWORLD Electric Blanket 150x80 cm, Heated Blanket Overheat Protection \| Heated Underblanket, 4 Heat Settings, 4 Timer Options, Machine Washable,Fast Heat Up, Easy Fit Straps for Single Bed](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [ESTINGO Double Electric Heated Blanket 137x190cm, Heated Mattress Topper \| 6 Heat Settings, Rapid Heating, 10H Auto-Off Timer, Overheat Protection, Energy Efficient, CE & UKCA Certified, Washable, Bed](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Electric Blanket Double 150x120cm, Electric Underblanket for Bed \| Heated Mattress Topper with 3 Heat Settings, Energy Efficient Bed Warmer, Overheat Protection, Anti-Slip Elastic Straps](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Warmer Electric Blanket Double 160x137 cm for Bed, Dual-Zone Temp Control \| Tie-down Straps, Auto-Off Timer, Extra-large Heated Area, 9 Heat Levels, Overheat Protection](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Schallen Premium Comfort Electric Heated Blanket, Remote Control with 3 Heat Settings \(Single, Cosy Polyester Electric Blanket\)](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Autsel Electric Blanket, Heated Mattress Topper Underblanket,135x190cm \| 9 Levels & 2-10H Timer Auto-Off, Overheat Protection, Easy Fit Straps, Machine Washable](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Wärmer Electric Blanket Double Size - Dual Control, Fully Fitted Mattress Cover with Elasticated Skirt, 3 Heat Settings, 2 X Detachable Controllers - 193 X 137cm Double](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [TOPS Electric Blanket Single Heated Underblanket with Timer 3 Heat Settings Overheat Protection Machine Washable Warm Polyester Size 150 x 80cm White \(CH-42\)](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Morphy Richards EverCosy Electric Under Blanket, King, 160x150cm, For Back Pain and Cold Nights, 9 Heat Settings, 9hr Timer, BEAB Approved, 1p/hr Cost, Cream, 600122](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Heated Blanket, Electric heated throw 160x130CM Dusty Pink,Electric Blanket \| 10 Levels &1-9H Timer Auto-Off, Machine Washable, Soft Flannel Sherpa, Sofa Bed Use, Warm Blanket with Tortoise Shell Texture](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)
- [Heated Blanket Throw 130×160cm Electric Blanket, 10 Heating Settings, 1-8h Timer overheat Protection, Machine Washable, Flannel & Sherpa Full Body Warming, Electric Throw Blanket for Sofa](https://bargainpostbox.co.uk/visit/straame-double-heated-underblanket-135x120)

## Images

![Straame Heated Underblanket, Double, 135 × 120 cm — 1](https://bargainpostbox.co.uk/i/oX9uT0DRHzr5aSOw8jmI2lQ0hXICYEcrqimlvONVcNTE2iKEwMdcYTWFbRre0anMifAQcg79U7NR_bQ_W3WlNbwfINdJ7Mn36kPrjI-3g5Ixbjet6EphaTAX.jpg)

![Straame Heated Underblanket, Double, 135 × 120 cm — 2](https://bargainpostbox.co.uk/i/aDU_hEduFhzowPs9ftYwBUcDzoC5xNHjh2G8sKTKGNmvhp7WJyKGDuCLtAsb6lVzVqn3umYW8VQqyNV4M17Mvv5N1fcPhI-uRsSkqnKVr7zxhw_EhMEC9yXd.jpg)

![Straame Heated Underblanket, Double, 135 × 120 cm — 3](https://bargainpostbox.co.uk/i/7kbvEYPo1x_HETMv__i8uGkDrglE9S3Dfhnz0maD-Vof_b-0VRARrLtbrhABcdbE2kh--8gQgMwRuMKOImbPKSJU7rxMp8FyV_W6lDLxK-ZU1dl9I3KEkr4m.jpg)

![Straame Heated Underblanket, Double, 135 × 120 cm — 4](https://bargainpostbox.co.uk/i/2qWm8PPsvU_62mdE0-MtDCVzE_UCG9JC4sy6b-F6ChrsKq9sF59YJzsARrz_TyI4YxKJhFrhgPAIhe6WtOf-4QEV5cb1ZvV_NyiofabQ0yuoW3BzewCPsROW.jpg)

![Straame Heated Underblanket, Double, 135 × 120 cm — 5](https://bargainpostbox.co.uk/i/VdX4dK-Bsx5syvErqSZs35DEkRWmjo6lRF6n_m2BXD_LmFqZqXzJ31ApOTZE92k_U_2jgR95dzsgCggfAX1W16A5WNWH55IXbV-1slBoWPlP_AFggU0neH2U.jpg)

![Straame Heated Underblanket, Double, 135 × 120 cm — 6](https://bargainpostbox.co.uk/i/e_2bY_DyAe8im0yiIh_FGP8bQTHjqqUuRXhcFj60gFy8vv5APkoUVG7gPGSOTqcraV_h9LWG2Kz9g3nouqBQBVcfbTXeF-sBPN55xrgt8dKx5jFQp9YUb_NJ.jpg)

![Straame Heated Underblanket, Double, 135 × 120 cm — 7](https://bargainpostbox.co.uk/i/BvKExlvT1ACLw4L7LUB13uz3GP080JWBBUMnE2W7BNELUrKGdKFASe-Ew1X1KeXEv_Uzlr5WWZbQbdgn_WiD2RUWJKBFRCd67xv89vD-63jJSL1i6ywatYFa.jpg)