A heated blanket is the cheapest way to feel warm without heating the whole house, and the appeal is obvious on a cold evening: gentle warmth on the sofa, on stiff shoulders, or over your knees at a desk. They are not interchangeable, though. A recent group test put six of them through the same routine — thermal-imaging the warm-up, measuring peak temperatures, folding a corner to see whether the fabric overheated at the crease, and timing how long each one stays on — and the results separate them sharply by how the warmth actually feels.
The short version
What to Look For
Peak temperature matters more than the marketing. The tested models behave completely differently at maximum. The hottest reached 46 degrees Celsius — strong, fast heat that suits anyone who feels the cold badly, but already borderline for sensitive users. In the middle sit the Medisana pair, at 41.7 and 40.8 degrees. The Beurer models are deliberately cooler: the HD 80 and HD 82 Helsinki hold around 27 degrees and the HD 75 Nordic just under 32. That is spa-style warmth rather than intense heat, kind to sensitive skin but wrong if you want to be warmed up fast.
How quickly it warms up is a separate question. Thermal imaging showed the Medisana HB 675 at 27.5 degrees after a single minute and close to 40 after ten — the quickest in the field. The Beurer HD 82 Helsinki is far more gradual, about 20 degrees after a minute and 25.5 after five, climbing steadily rather than in jumps. The Stoov takes around five minutes to reach full temperature and then holds it very steadily at 39 to 40 degrees.
Even heat beats raw heat. Measured temperature alone does not decide the experience; what counts is how evenly the warmth arrives. The larger Beurer blankets were the weakest here — the HD 150 XXL delivers some of its heat in spots rather than spreading it through the fabric, and the HD 75 Nordic's heat image is less balanced still.
Mains or battery changes what the blanket is for. Cordless models go anywhere — sofa, desk, even outdoors — but the runtimes differ hugely: the Stoov Big Hug XL lasts about 160 minutes at maximum, enough for a long film, while the Fatboy needs the mains again after roughly 70. With mains blankets the question is whether the cable detaches, because only then can it be used as an ordinary blanket afterwards. Most manage it; the Medisana OL 800 is the exception, with its cable permanently fixed. Cable length is worth checking too — the Beurer HD 150 XXL gives you 240 centimetres to play with, the Medisana HB 675 XXL only 215.
Controls. The Beurer blankets offer the finest adjustment of the group, with six temperature steps. The Stoov models, the Fatboy and the Medisana OL 800 use three, which is usually enough — cool, warmer, warm enough. Nearly all of them show you which level is running; the Medisana OL 800 is the one that does not, with no display and no visual feedback at all.
Material. Most use polyester, which feels fleece-like, holds heat well and drapes closely around you. The Medisana OL 800 is the outlier at pure cotton — noticeably more breathable and less synthetic to the touch, though also less fluffy, more like a textile blanket than a cuddly one.
Best Overall: Beurer HD 82 Helsinki
The Helsinki wins by being even rather than fast. Its warmth builds slowly but spreads very consistently across the whole surface, with none of the hot spots or pressure points that spoil cheaper blankets, and the fabric stays soft and pliable instead of turning stiff. The controls are clear and the level you want is quick to set. It is not one of the hottest blankets in the group — it holds around 27 degrees — but it delivers the most balanced and comfortable warmth on test, which is what you actually notice over a long evening. Check the price on Amazon
Best for a Desk or Armchair: Stoov Big Hug XL
The Stoov works differently from the rest: you do not drape it over yourself, you sit on it. Used on a chair or seat it produces very even, comfortable warmth that feels like a well-judged car seat heater — warm, constant, no pressure points — which makes it the pick for a home office, a desk, or a cold seat. It takes about five minutes to reach full temperature and then holds 39 to 40 degrees steadily. Being cordless, it runs around 160 minutes at maximum, it is machine washable, and it carries an Oeko-Tex Standard 100 certificate. Check the price on Amazon
Best Natural Fibre: Medisana OL 800
The OL 800 is the only model in the test made entirely of cotton, and it feels it: more natural and noticeably more breathable than the polyester crowd, at the cost of that plush fleece softness. It is cordless, reaches a fairly warm 40.8 degrees, has three heat levels and comes with a storage bag for the summer months. Two caveats matter before you buy. It shuts off after just 20 minutes, which is cautious but genuinely limits how you can use it, and it is the one model whose cable is permanently attached, so it can never be used as a plain blanket. It also gives no indication of which heat level is selected, and it is hand-wash only. Check the price on Amazon
Best for a Big Bed or Sofa: Beurer HD 150 XXL
If you want to cover a double bed or a large sofa, the HD 150 XXL is the one with the reach — 240 centimetres of cable, the most generous here, so you are not tethered to the nearest socket. It is machine washable at 30 degrees once the control unit is detached, and it carries an Oeko-Tex Standard 100 certificate. Be aware of its weakness: it tends to deliver warmth in patches rather than spreading it evenly through the fabric, so it trades the Helsinki's balance for size. Check the price on Amazon
Gentlest Warmth: Beurer HD 75 Nordic and HD 80
If you find most heated blankets too hot, these are the two to look at. The HD 80 stays around 27 degrees and the HD 75 Nordic just under 32 — mild, restrained warmth without pressure points or fierce heat. The HD 75 Nordic was also one of the two best in the field at holding a steady temperature once it got there, and it is machine washable at 30 degrees. Both carry Oeko-Tex Standard 100 certificates. The honest catch is evenness: the HD 75's heat distribution is the least balanced of the tested models, so you are choosing it for gentleness, not precision. Check the price on Amazon
Also Tested — and Why Three Picks Are Missing Here
Three models from the test do not appear above, for reasons worth stating plainly. The Medisana HDW was the test's value winner: an unfussy blanket that warms quickly and mildly, with a clear control unit and reliable buttons, let down only by slightly uneven distribution and hand-wash-only care. We could not find it listed on Amazon UK, so no substitute is offered in its place. The Fatboy Hotspot Blanket hit the highest temperature of the group at 46 degrees and is the choice for anyone who is always cold, though it is less harmonious than the others, lasts only about 70 minutes per charge, and behaved awkwardly on test — on its warmer settings it shut itself down after five, ten or thirty minutes, then had to cool before it would heat again. It has no UK listing either. The Medisana HB 675 XXL is the quickest to warm and the only model in the test carrying a GS mark, but at the time of writing its Amazon UK listing has no buy box.
Safety and Cleaning, as Measured
Every blanket in the test was folded deliberately at one corner and then re-checked with a thermal camera to see whether the crease became a hot spot. None did — the variations were minimal, and no blanket became noticeably hotter where it was folded. All of them have an automatic shut-off, though the timings vary widely: most stop after around 180 minutes, the Stoov Big Hug XL runs for nearly three hours before switching off, and the Medisana OL 800 cuts out after only 20 minutes. On certification, all the tested models carry a CE mark, which is the manufacturer's own declaration rather than an independent inspection; only the Medisana HB 675 XXL adds a GS mark, where an independent institute has checked the electrical and mechanical safety. Several — the Stoov Big Hug, the Beurer HD 150 XXL, HD 75 Nordic, HD 80 and HD 82 Helsinki, plus the Medisana HDW and HB 415 — carry Oeko-Tex Standard 100, which covers testing for harmful substances in the fabric.
Cleaning splits the field neatly. The Stoov Big Hug and Big Hug XL, the Beurer HD 150 XXL and the Beurer HD 75 Nordic are machine washable at 30 degrees once you unplug the control unit. The Medisana HB 675 XXL, OL 800 and HDW are hand wash only, which is a real inconvenience for something you use against your skin.
How to Choose
Start with how warm you actually want to be. If you like steady, comfortable warmth and dislike hot spots, the Beurer HD 82 Helsinki is the best pick in the test. If you want something for a desk or a cold chair rather than for lying under, the Stoov Big Hug XL solves a different problem well. If you would rather have cotton against your skin than fleece, the Medisana OL 800 is the only option here — provided you can live with a 20-minute shut-off and a fixed cable. For a double bed, the extra cable length of the HD 150 XXL is the practical advantage, and if you are sensitive to heat, the milder HD 80 and HD 75 Nordic are the gentler choices. Whatever you pick, check whether the control unit detaches and whether the blanket can go in the machine, because that decides how easy it is to live with.
Frequently asked questions
How do you wash an electric blanket? It depends on the model, and it is worth checking before you buy. Of the blankets tested, the Stoov Big Hug and Big Hug XL, the Beurer HD 150 XXL and the Beurer HD 75 Nordic are machine washable at 30 degrees — you detach the control unit first, then wash them like any other blanket. The Medisana HB 675 XXL, OL 800 and HDW are approved for hand washing only.
What did the safety testing actually find? Each blanket was folded at a corner and re-examined with a thermal camera to see whether the crease overheated. None of them showed unusual temperature peaks, and none became noticeably hotter at the fold. Every model also has an automatic shut-off, but the timings differ a lot: most switch off after about 180 minutes, the Stoov Big Hug XL runs for close to three hours, and the Medisana OL 800 stops after 20 minutes.
Which heats up fastest, and which gets hottest? They are not the same blanket. The Medisana HB 675 warms quickest — 27.5 degrees after one minute and nearly 40 after ten. The highest peak temperature belongs to the Fatboy Hotspot Blanket at 46 degrees, ahead of the Medisana HB 675 at 41.7 and the OL 800 at 40.8. The Beurer models are the mildest, at roughly 27 degrees for the HD 80 and HD 82 Helsinki and just under 32 for the HD 75 Nordic.
Do I need six heat levels? Only if you like fine control. The Beurer blankets offer six steps and allow precise adjustment; the Stoov models, the Fatboy and the Medisana OL 800 use three, which covers most situations. The one thing to watch is feedback — nearly every model makes the active level obvious, but the Medisana OL 800 has no display at all.
