Straame Double Heated Underblanket, 85 W, 135 x 120 cm

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Product guide

Straame Double Heated Underblanket, 85 W, 135 x 120 cm

Straame Heated Blanket is a double electric underblanket measuring 135 x 120 cm, with four heat settings and one detachable controller. Its listed 85 W rating and compact dimensions suit buyers seeking a bed warmer, but the size and mixed durability feedback deserve consideration.

At a glance

Designed to lie flat on the mattress beneath normal bedding, with four tie-down loops.
Four heat settings and one detachable controller provide basic temperature selection and on/off control.
The listing claims overheat protection and automatic shut-off after 10 hours.
The textile section can be machine washed at up to 40°C or hand washed after removing the controller.

Price

£15.29Save 15%

Reference price: ~~£17.99~~

Price checked: 13 Nov 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

Four heat settings offer more choice than a simple on/off control.
Four tie-down loops help secure the underblanket on the mattress.
Detachable controller makes it possible to wash the textile section separately.

Cons

At 135 x 120 cm, its listed dimensions are smaller than many double-bed surfaces, so coverage may be limited.
The blanket uses a single controller, with no separately controlled sides specified.

Technical specifications

22 specifications

Identity
Brand	Straame
Model	Heated blanket

Dimensions and material
Dimensions	120L x 135W centimetres
Size	Double Size
Material listed	Polyester
Colour	White
Blanket form	Single Layered Blanket
Style	Fleece Blankets
Pattern	Solid
Warmth	Medium Weight

Power and controls
Power	85 W
Heat settings	Warm, Low, Medium and High
Controller	one detachable controller
Automatic shut-off	10 hours
Supply	220–240 V AC, 50 Hz
Insulation	Class II double insulation

Care and use
Care instructions	Machine Wash, Do Not Tumble Dry
Washing guidance	up to 40°C or hand washable
Intended use	Bedtime Use
Seasons	All
Recommended user	Adult
Safety and marking claims	UKCA and CE marked

What to know before buying

Use beneath normal bedding, keep the pillow area clear, avoid folds or creases, and follow the manual. Remove the controller before washing. Do not tumble dry, iron, bleach, dry clean or wring. Use only with the supplied controller.

Listing details to confirm

The listing gives a double-size label but dimensions of 135 x 120 cm, while customer feedback also describes the blanket as too small. Customer reports about warmth and durability are mixed or negative, so treat these as reported experiences rather than confirmed product defects.

Who is it for?

A good fit for

Buyers wanting a compact underblanket with four heat settings and a detachable controller.
People who can confirm that 135 x 120 cm provides adequate coverage for their bed.

Less suited to

Buyers who need a full-surface double-bed fit or independent heat controls for two sides.
Buyers who prioritise reassuring durability feedback, given reports of early failures.

Straame Double Heated Underblanket, 85 W, 135 x 120 cm · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.8 / 5 · 232 ratings

5 stars57%57%
4 stars12%12%
3 stars7%7%
2 stars3%3%
1 star21%21%

Customer feedback is mixed on quality, heat control and value, with some reporting satisfactory warmth and others saying it does not get very warm. Durability comments include reports of failures within days or weeks, and some buyers consider the size too small. These experiences are worth weighing against the stated 135 x 120 cm dimensions and four heat settings, especially if bed coverage or long-term reliability is important. The overall rating distribution is mixed rather than consistently positive.

Positive themes

Some customers report that the blanket heats up nicely.

Negative themes

Customers report early failures, including units stopping within weeks or breaking on the first day.
Some customers describe the blanket as too small for their bed.

Mixed feedback

Customer opinions differ on product quality, warmth and value for money.

Frequently asked questions

What size is this Straame underblanket?

The listing gives its dimensions as 135 x 120 cm and labels it double size. Compare those measurements with your mattress before buying.

How many heat settings does it have?

The listing names four settings: Warm, Low, Medium and High. It specifies one detachable controller.

Can the blanket be washed?

The textile section is listed as machine washable at up to 40°C or hand washable. Remove the controller first and do not tumble dry.

What automatic shut-off and safety features are listed?

The listing claims overheat protection and automatic shut-off after 10 hours. It also instructs users to keep the pillow area clear and avoid folds or creases.