Extra large and XXL heating pads are the best solution for people who want to cover a large painful area (such as the back) in one treatment and maximize heat therapy for pain relief, increased blood flow, and stress relief.
The XL heating pads below would be great for all kinds of large pain areas in your body:
1. Back pain and sciatica
2. Leg Pain
3. Fibromyalgia, arthritis, multiple injuries after a car accident, etc.
These 7 heating pads use different heat therapy types (dry heat, moist heat, or infrared heat), and you’ll see the pros and cons of each one right below the table.
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Overview
- Heating Pad Sizes
- The 7 Best Extra Large Heating Pads
- 1. Pure Relief XXL Heating Pad – Best Value
- 2. Sunbeam King Size Heating Pad – Fastest Heating
- 3. Thermotech Digital Moist Heating Pad – Best Moist
- 4. UTK Infrared Jade Heat Mat (XL) – Best Weighted Infrared[/su_label]
- 5. Sharper Image XL Infrared Heating Pad
- 6. GENIANI King Size Heating Pad – Dry & Moist Heat
- 7. GOQOTOMO Flower Heating Pad – Gorgeous Design & Comfortable
- What is the Largest Heating Pad Available?
- What is the Hottest Large Heating Pad?
- What’s the Best Selling Large Heating Pad on Amazon?
Heating Pad Sizes
Heating pads come in a variety of sizes, from small sizes starting at 12″x”15″, to extra large sizes and mattress sizes.
A standard-size heating pad is about 12″ x 15″, and is too small to cover most of your back. An extra-large heating pad is usually at least 12″ x 24″.
Small heating pads are intended for small muscle areas and joints (knee/elbow).
Medium-sized heating pads can cover larger areas such as the lower back or thighs, and large heating pads can cover most of your body if not all of it – from neck to feet.
See exactly where to place a heating pad for sciatica/constipation/UTI/period cramps
The 7 Best Extra Large Heating Pads
Extra-large heating pads come in a wide range of prices, mainly due to different features such as different heat options, multiple heat settings, and a removable cover.
The most expensive ones are infrared heating pads, which deliver radiant heat through natural gemstones and emit almost no EMF.
Since these high-quality pads can last for years, you may want to invest a little more in a heating pad with these special features.
1. Pure Relief XXL Heating Pad – Best Value
- Size – 12″x24″ (XL) / 20″x 24″ (XXL)
- Weight – 1.45 lbs. / 1.9 lbs.
- Material – microfiber (machine washable)
- Temperature range – 105-140℉
✅ Pros – Heats up quickly, twice as many heat settings as other pads, full back coverage, 9-foot cord
❌ Cons – Heat may not be uniform across the pad, requires delicate washing
The Pure Relief XXL heating pad is large enough to cover large muscle groups or the entire back, has 6 temperature settings to choose from (with the digital LCD controller), and a moist therapy option for deeper heat penetration.
The highest heat setting is 140 F, and the lowest is 105 F.
The cover is soft and comfortable (machine washable), and the extra-long cord (9-foot) makes it easy to use from your bed, sofa, or chair. And it is also very easy to travel with.
The Pure Relief heating pad shuts off automatically after 2 hours, which is important if you fall asleep on it, and comes with a storage bag for easy transport.
However, while the cover can be removed (there’s a zipper) and washed – it requires gentler washing – on the delicate cycle with cold water.
Also, some users have reported that the cord is too short, making it challenging to use the pad in some situations.
✅ Price – XXL Size – $44 at Pure Enrichment and $44 on Amazon
XL Size – $35 at Pure Enrichment, and $30 on Amazon
2. Sunbeam King Size Heating Pad – Fastest Heating
VIEW ON AMAZON $39
- Size – 12” X 24”
- Weight – 1.4 lbs.
- Material – microplush
- Temperature Range – 3 settings (low/medium/high)
✅ Pros – Heats in 30 seconds, many heat settings, gets very hot at the highest setting
❌ Cons – Cover promotes sweating, and some quality issues have been reported by consumers
The Sunbeam XL heating pad (HSA/FSA Eligible) heats up in only 30 seconds, has 6 heat settings (so you can pinpoint the most comfortable heat for your needs), and offers both dry and moist heat.
The digital controller allows you to track the heat and set the auto shut-off time. The super comfortable cover is made with micropush, and it comes with a 5-year warranty.
How Hot Does it Get?
The highest heat setting (6) is too hot to put next to your skin and even too hot to touch. It would require at least one layer of clothing between the pad and your body, we doubt you’ll even use it.
The pad can’t be folded sharply (though you can mold it gently to wrap around your joints), and the cover is not removable (this can be solved by getting a replacement heating pad cover, like this one)
✅ Available on Amazon ($39)
3. Thermotech Digital Moist Heating Pad – Best Moist
VIEW ON AMAZON $71
- Size: 14″ x 27″
- Weight: 2 lbs.
- Material – flannel cover
- Temperature range – up to 160℉ (4 heat settings)
✅ Pros – One of the hottest pads available, moist heat (without water), flexible, and wrappable
❌ Cons – May stop working after 1 year, more expensive than average
The Thermotech large heating pad (moist) allows you to set the exact temperature you want with your controller, has a temperature lock, and gets very hot: you can set it up to 160℉!
The Thermotec doesn’t require water to stay moist: it uses the humidity in the air to produce moisture, and it is flexible and wrappable.
The cover is removable and washable, and it comes with a velcro strap to help separate it from other clothes in the washing machine.
The only con we found is the somewhat annoying 15-minute auto shut-off.
But, it can be adjusted to one hour instead (which is still not enough), and the warranty is only for one year.
✅ Available on Amazon ($65)
4. UTK Infrared Jade Heat Mat (XL) – Best Weighted Infrared[/su_label]
VIEW ON AMAZON $179
- Size: 31″ X 21″, about ½” thick (yet this is only the medium size. There’s a giant one that can cover your entire body)
- Weight: 4.8 lbs. , includes 126 natural jade stones
- Material – Jade stones, carbon fiber, PU Leather
- Temperature Range – up to 159℉
✅ Pros – Deep-penetrating infrared heat, negative ions, high-quality build, durable, highly customizable heat, FDA-cleared
❌ Cons – Heavy to move around, bulky
From my personal experience, the UTK large infrared heating pad is the best (and safest) large infrared heating pad, and it is the one I recommended to my friends.
Here’s why:
While electric heating pads are effective and inexpensive, one thing still concerns me: they all emit EMF (electromagnetic field) radiation.
For the last 2 decades, many studies have investigated the health dangers of EMF, suspecting that it can weaken the immune system, hurt brain DNA, and increase the risk of cancer.
Most studies haven’t found a direct link, but none of them were able to rule it out either.
This is especially true when you use a large electric device so close to your body for a long time.
This is why I’ve recommended an Infrared Heating pad, which emits very low to no EMF radiation at all and uses Jade or Tourmaline stones to deliver the deep penetrating infrared healing rays (up to 159 F) into your body (and negative ions!).
Plus, compared to electric heat, the UTK infrared heating pad penetrates 10 times deeper into your body, without exposure to electromagnetic radiation.
Utk Heating Pad Pros
- UTK heating pad contains natural jade/tourmaline stones to deliver deep-penetrating infrared heat
- Relieves stress and boosts energy through negative ions therapy
- Infrared heat makes you produce more sweat than via electric pads (helps to detox)
- Heat is deep penetrating and effective without feeling extremely hot
- Digital controller with auto-shutoff
- Comfortable to lean on, and you can sleep on it
- 1-60 heat settings, 50 feels comfortable for most people
- Flexible and can be used to wrap any part of your body
- Built-in timer, but allows for continuous heat
Cons
- I’ve found no cons other than the price.
Available on Amazon ($179)
5. Sharper Image XL Infrared Heating Pad
- Size – 26″ x 35″
- Weight – 1.72 lbs.
- Material – Velveteen
- Temperature Range – 3 heat settings (up to 149℉)
✅ Pros – Deep-penetrating Infrared rays through carbon fiber, multiple heat settings
❌ Cons – Heat settings feel the same to some users, expensive
The Sharper Image extra-large heating pad emits infrared rays via carbon fibers at wavelengths greater than 3000 nanometers (far infrared). Deep penetrating heat is proven to be more effective for pain relief. Plus, it doesn’t get too hot to the touch.
It has no semi-precious stones, so it’s relatively lightweight (only 1.72 lbs.) and flexible – it can be used on a chair and a recliner and even as a foot warmer.
The cover is soft and comfortable, but it is not machine washable.
Like all FIR heating pads, the surface does not get hot to the touch, but the heat penetrates deep into your tissues as you lie on it for at least 30 minutes.
Available at Sharper Image ($149)
6. GENIANI King Size Heating Pad – Dry & Moist Heat
VIEW ON AMAZON $34
- Size – 12″ x 24″
- Weight – 1.8 lbs.
- Material – polyester microplush
- Temperatures – 3 heat settings (up to 103℉)
✅ Pros – reliable high heat output, long cord (112 inches), stays flat, long warranty
❌ Cons – The lowest heat setting barely works
The GENINANI heating pad is one of the best-selling XL heating pads on Amazon, and most people mention the fast, 30-second heating and the luxurious feeling of the soft fabric sleeve.
The pad doesn’t feel hot to the touch, even on high settings, but once pressure is applied, the heat is strong and effective.
The heating elements are lined inside the cover, so the pad stays flat and maximizes contact with your painful area.
The heat output is no joke, but the lowest setting feels like it barely works.
We like that it can be used as a moist heating pad and has a 3-year warranty.
However, some people claim that it doesn’t hold the heat well after being unplugged (seems like a strange complaint) and that the temperature changes mysteriously.
Available on Amazon ($34)
7. GOQOTOMO Flower Heating Pad – Gorgeous Design & Comfortable
VIEW ON AMAZON $27
✅ Pros – highly versatile (8 timer settings, 12 heat settings), gorgeous design, extra comfortable, lowest cost
❌ Cons – may stop working after 1 year
- Size – 12″ x 24″
- Weight – 1.64 lbs.
- Material – Sherpa fleece cover
- Temperatures – 12 settings
The gorgeous design of this flower heating pad, its super-soft and thick Sherpa fleece cover (machine-washable), and the 12 temperature settings it offers make this one an almost irresistible XL heating pad.
It has no less than 8 auto shut-off levels, a unique feature for a regular electric heating pad (most pads have about 3-4 timer options or just one).
However, we wish it had a strap to help us use it around our shoulders when sitting.
Available on Amazon ($27)
What is the Largest Heating Pad Available?
The largest electric heat pad would be a full-body pad, also known as a heated mattress.
Our top recommendation for 2025 is the Ereada infrared heating mattresses – high-end FIR heating pads with negative ions and PEMF magnetism.
The largest size is the 32″L X 20″ W one – see our full review for the Ereada infrared heating pads.
Another option we’ve found is the Sunbeam Heated Mattress Pad, which comes in full bed sizes, including twin, full, queen, and king sizes.
The Sunbeam soft quilted heated mattress topper is a giant heating pad that comes with dual-side controllers for you and your partner and 10 heat settings you can choose from.
This one also features the longest auto-shutoff of no less than 10 hours.
It has a warmer zone at the bottom and a cooler zone near the head, with a medium zone in the middle.
Many people use it as a blanket, not a mattress pad.
See all the details on this Amazon page!
What is the Hottest Large Heating Pad?
The Thermophore MaxHEAT Moist Heat Pack (14″ x 27″) is the hottest XL heating pad in 2025 and can run between 150 to 165℉.
It is slightly weighted, with weights positioned to make it conform to your body and reduce air pockets so more heat is delivered to your body.
This is literally a steaming heating pad, which produces intense moist heat without adding any water, and the new design comes with a simple one-touch control and a 25-minute auto shut-off timer.
Warning – This pad is not meant to lie on, only to place over your body.
If you do lie on it, check it frequently to avoid burning.
What’s the Best Selling Large Heating Pad on Amazon?
The best-selling XL heating pad on Amazon (12″ x 24″) is the Sunbeam XL SoftTouch, which comes with 4 heat settings and a digital controller, and shuts off after 2 hours.
It has a very soft plush cover (machine washable), and consumers have stated that it maintains continuous heat.
However, we do not recommend it because a few reviewers received defective items, and one of them even burned and almost caught her mattress. We recommend the other heating pads on this post instead.
To your health and happiness,
The Back Pain Relief Products Team
P.S
See the best heating pads for menstrual cramps
I have been looking for a huge heating pad for a while now and one that covers most of my body while I sleep.
But the stores never carry them. So when I looked up large heating pads that’s when I found your site.
Much to my surprise, I not only found heating pads of all sizes you also narrowed the search for me. Which I’m very great full for because for me it would of been mind-boggling to try to figure out what was best.
So I’m going with the jade ones the best extra large jade utility heating pad.
I did not know that heating pads could actually hurt you. So again thank you for all your research and hard efforts to help people like me to understand what and how heating pads can hurt us as well as help our cakes and pains of life.
Please keep my email address for future back topics of relief.
Thank you again for all your hard work and efforts to keep the public aware of what’s good out there versus the ones that say they are and in reality are actually hurting us while they are taking our money and knowing the outcome but don’t care.
Sincerely Jean
I’m thrilled to have helped you Jean, thank a lot for your feedback and warm words:)