Infrared blanket explained: how it works, how to use it and what to expect
What an infrared blanket actually is, how the heat reaches your body and what you can realistically expect from it.
If you have health concerns or are unsure whether this suits you, talk to your GP or healthcare provider first. Effects differ from person to person.
In short
- An infrared blanket warms your body directly with radiant heat, not the air around you.
- It uses far infrared: heat you can feel, not visible red light like a panel gives off.
- A session usually lasts 20 to 40 minutes at 50 to 70 °C, built up from a lower setting.
- What people get from it in practice is relaxation, warmth and a pleasant feeling in their muscles after exercise.
- The weight loss you see right after a session is water, not fat. Drink plenty before and after.
What you will find on this page
What is an infrared blanket?
An infrared blanket is a foldable blanket with heating elements that give off far infrared heat. You lie down inside it, zip it up and the heat reaches your body from all sides. The idea is simple: the sauna feeling of warmth and sweating, but on your own sofa or bed, without a cabin and without a fixed installation.
The terms sauna blanket and infrared blanket are used interchangeably and mean the same thing. Many people search for infrared blanket, while packaging and webshops more often say sauna blanket.
What is a blanket like this made of?
The build is almost the same for every brand, only the quality of the parts differs a lot.
| Part | What it does | Where quality matters |
|---|---|---|
| Outer layer | Protects and insulates the blanket | Sturdy material that does not stretch when rolled up again and again |
| Heating wires | Give off the infrared heat | Even distribution; cheap models have cold spots |
| Insulation layer | Keeps the heat inside | Thicker insulation means less heat loss and faster warming up |
| Inner layer | Rests against your skin or clothing | Removable or easy to clean material |
| Controls | Set temperature and time | Clear steps, automatic shutoff and overheating protection |
The biggest practical differences between models lie in heat distribution and insulation, not in maximum wattage.
How the heat works
Infrared is radiation you cannot see but can feel. It is the same kind of warmth you feel on your face when you stand near a wood stove or walk in the sun on a cold day. That heat does not need to warm the air first: the radiation reaches your skin and turns into heat there.
A sauna blanket uses far infrared, the long wave part of the spectrum. It does not penetrate deep into the body, but it warms the skin and the layer beneath it effectively. Your body responds the way it responds to any source of heat: the blood vessels in your skin widen, circulation increases and you start to sweat to cool down.
The three types of infrared
| Type | Wavelength | Where you find it |
|---|---|---|
| Near infrared (IR-A) | 780 to 1400 nm | Red light panels, heat lamps for muscles |
| Mid infrared (IR-B) | 1400 to 3000 nm | Some infrared cabins |
| Far infrared (IR-C, FIR) | 3000 nm to 1 mm | Infrared sauna blankets, carbon panels in cabins |
FIR stands for far infrared. That is what a sauna blanket gives off.
An infrared blanket gives off heat, not visible red light. Red light therapy works with wavelengths around 630 to 660 nanometres and is meant for the skin, not for warming up. Want to read more about that? Have a look at wavelengths in red light and infrared.
How it differs from a sauna, cabin and electric blanket
| Feature | Infrared blanket | Infrared cabin | Traditional sauna | Electric heated blanket |
|---|---|---|---|---|
| Heats | Your body directly | Your body and the air | The air around you | Only the surface |
| Temperature | 30 to 80 °C | 45 to 60 °C | 80 to 100 °C | 20 to 40 °C |
| Space needed | No, foldable | Yes, a fixed spot | Yes, a separate room | No |
| Energy use per session | Low | Medium | High | Very low |
| Purpose | Sweating and relaxing | Sweating and relaxing | Sweating and relaxing | Staying warm |
An electric blanket and an infrared blanket look alike but have a different purpose: staying warm versus warming up and sweating.
The difference people notice most is how the heat feels. In a traditional sauna you sit in hot air and feel it mainly on your skin and in your airways. In a blanket, the air you breathe stays normal while your body still warms up. That is why many people who find a sauna stuffy prefer a blanket.
How a session works
- Unfold the blanket on your sofa or bed and switch it on for 10 to 15 minutes to preheat.
- Wear long, thin clothing or use an inner liner. Direct skin contact with the inner layer is less comfortable and less hygienic.
- Put a glass of water within reach and drink before you start.
- Get in, zip up as far as feels comfortable and set the temperature. Start at around 50 °C if you are new to it.
- Stay in for 20 to 40 minutes. Most people start sweating after 10 to 20 minutes.
- Switch the blanket off, stay lying down for a few minutes to cool down calmly and then take a lukewarm shower.
- Drink water again afterwards and leave the blanket open until it is dry.
Guide to temperature and duration
| Experience | Temperature | Duration | Frequency |
|---|---|---|---|
| First few times | 45 to 55 °C | 15 to 20 minutes | 2 times a week |
| After a few weeks | 55 to 65 °C | 25 to 35 minutes | 3 to 4 times a week |
| Experienced user | 65 to 75 °C | 30 to 45 minutes | 3 to 5 times a week |
This is a guideline, not a rule. Stop sooner if you feel dizzy, nauseous or restless.
What you can realistically expect
A lot is promised about infrared blankets online. Below you can see what people experience in practice and how plausible that is, based on how heat affects the body.
| What people experience | How realistic is that |
|---|---|
| Relaxation and calm after a session | Consistently reported; warmth and lying still for half an hour do that on their own |
| Muscles feel more supple after exercise | Often reported; heat increases circulation in the skin and surface muscles |
| Falling asleep more easily with evening use | Regularly reported; the drop in your body temperature after warming up plays a role here |
| Instant weight loss on the scales | True, but this is water loss that comes back as soon as you drink |
| Detox or flushing out toxins | There is no good evidence for this; sweat is almost entirely water and salts |
| Lasting fat loss | Not shown for a sauna blanket apart from diet and exercise |
A sauna blanket is a relaxation product, not a medical treatment.
If you buy a sauna blanket to lose weight, you are buying it for the wrong reason. Buy it if you want warmth and a fixed moment of rest in your week, without driving to a spa. That is what it is good at.
Safe use
With normal use, an infrared blanket is safe. The points to watch are mainly overheating and dehydration, just like in a sauna.
- Drink a large glass of water before and after your session.
- Do not use the blanket straight after alcohol or a heavy meal.
- Do not fall asleep in the blanket; use the timer.
- Place the blanket on a flat surface and do not fold it over while it is switched on.
- Stop straight away if you feel dizzy, have heart palpitations or feel nauseous.
Talk to your GP or healthcare provider before use if you are pregnant, have heart or blood vessel problems, have a pacemaker, have reduced feeling in your skin, open wounds or skin conditions, or take medication that affects your heat or fluid balance. Read more about when an infrared sauna blanket is less suitable.
What to look for when choosing
| What to look for | Why it matters |
|---|---|
| Heat distribution | Cold spots are the most common complaint with cheap models |
| Temperature range and steps | Fine steps let you choose exactly the setting that feels right for you |
| Insulation | Determines how fast the blanket warms up and how stable the temperature stays |
| Length and arm room | If you are tall, check the inside dimensions and whether your arms fit inside |
| Safety features | Automatic shutoff and overheating protection should be standard |
| Cleaning | An inner liner or removable inner layer saves a lot of hassle |
| CE and documentation | Ask for the declaration of conformity if you cannot find it |
Wattage says little on its own: a well insulated 300 W blanket can heat more pleasantly than a poorly insulated 600 W one.
Want to go through this step by step? Use the buying guide for infrared sauna blankets or read where the price difference between budget and premium comes from.
Questions about infrared blankets
What is the difference between an infrared blanket and a sauna blanket?
None. They are two names for the same product. Sauna blanket refers to the sauna feeling, infrared blanket to the technology behind it.
How long does an infrared blanket take to warm up?
Most blankets need 10 to 15 minutes to reach temperature. Well insulated models are faster and then hold the temperature more steadily.
Can you keep your clothes on in an infrared blanket?
Yes, and we recommend it. Long, thin cotton clothing or an inner liner feels most comfortable and keeps the inside clean. Direct skin contact with the inner layer quickly feels too hot at higher settings.
How much electricity does an infrared blanket use?
Expect 300 to 600 W while warming up and clearly less once the blanket is at temperature and only topping up the heat. A half hour session usually uses less electricity than one run of the tumble dryer.
How do you clean an infrared blanket?
Wipe the inside with a damp cloth after use and leave the blanket open until it is dry. Never put it in the washing machine. A washable inner liner saves you the most work.
Do you lose weight with an infrared blanket?
Not for good. You lose fluid through sweating during a session, which shows on the scales right afterwards. As soon as you drink, that weight comes back. A sauna blanket is a relaxation product, not a slimming aid.
Our infrared sauna blankets
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Luxyor Slimline 100 Infrared Sauna Blanket
Regular price €109,95 EURRegular priceUnit price per -
Temporary discountLuxyor Deluxe 310 Infrared Sauna Blanket PU Leather
€40,00 EUR −13%Regular price €259,95 EURRegular priceUnit price per€299,95 EURSale price €259,95 EURTemporary discount -
Temporary discountLuxyor Comfort 150 Infrared Sauna Blanket
€20,00 EUR −11%Regular price €169,95 EURRegular priceUnit price per€189,95 EURSale price €169,95 EURTemporary discount
