Best Infrared Sauna Blanket UK 2026

An infrared sauna blanket gives you most of the sweat of a sauna session without building a sauna. You lie inside it, zip up, and far infrared (the longer-wavelength infrared band that warms your body directly rather than heating the air around you) raises your core temperature for 30 to 60 minutes.

Four blankets dominate the UK market: Bon Charge, HigherDOSE, Sun Home and MiHIGH. They look similar, but they split sharply on price, EMF (electromagnetic field) transparency, warranty and how easy they are to actually buy and return in the UK. This guide ranks them on the things that matter once the marketing is stripped away. For the bigger decision of a blanket versus a full cabin, see our infrared vs traditional sauna comparison.

A heating layer inside the blanket emits far infrared, which penetrates the skin and warms you from within. Because it heats your body rather than a whole room, a blanket draws far less power than a cabin sauna and needs no installation, plumbing or ventilation.

The trade-off is that your head stays outside, so it is a sweat-and-recovery tool rather than the full enveloping heat of a traditional sauna. Most people use one for 30 to 45 minutes, three or four times a week, on a bed or the floor.

Four specifications separate a good blanket from a gimmick:

• Published EMF data. Most brands claim "low EMF" but never publish a figure. A measured number you can check matters more than the phrase. The usual safety reference point is 2.0mG, so anything well below that is reassuring.
• Temperature ceiling. Look for at least 75°C. Below that you will struggle to break a proper sweat.
• Fit. Check both length and the maximum user height - taller users need a 180cm-plus blanket that is wide enough to zip fully.
• UK availability and warranty. A UK warehouse means no import duty and a returns address you can actually post to.

Used sensibly, yes. The main considerations are heat and EMF. Keep sessions to 30 to 45 minutes, hydrate before and after, and avoid use if you are pregnant or have a heart condition without checking with a doctor first. On EMF, every blanket here markets itself as "low EMF", but only Bon Charge publishes a verified figure (0.16mG, well under the common 2.0mG reference point). Far infrared itself is non-ionising radiation, the same broad category as visible light and radio waves - see the overview of far infrared for the underlying physics.