Lavayoo XL aka Monstrosity is my wife's FAVORITE HEATING PAD. It is HEAVY, coming in at 10 pounds. This one is not for your kids or for your lovely granny. It will literally keep your bed warm under blankets for over 6 hours.
More lava sand = more thermal mass = heat lasts longer...Its Science!
It is the first one she goes to 90% of the time. It provides a quick and easy way to soothe aches, pains, stress, and anxiety. They are perfect for migraines, back pain, neck pain, sore muscles, stiffness, poor circulation, cold feet, and more.
Just like any other heating or cooling pad, you can place your Lavayoo in the microwave or freezer for fast relief. What sets Lavayoo apart is the filling: odorless, ultra-rare lava sand—not food—so it lasts longer and stays clean.
Use Instructions
Heating:
Microwave: Heat for approximately 4 minutes to 5 minutes. Most microwaves work well at this time, but you may need to adjust slightly to suit your preference. Do not exceed 6 minutes.
Oven: Place on a cookie sheet to keep it clean. Heat at 200°F for 20–30 minutes. You may increase the heat slightly for faster warming, but avoid overheating—skin can burn at around 150°F.
Cooling:
Place the pad inside a sealed plastic bag to keep out freezer odors. Freeze for 2-3 hours, or store in the freezer so it’s always ready for use.
Washing:
Lavayoo pads can be washed by hand or in the dishwasher if needed, unlike food-filled heating pads. Watch this video to learn.
Dishwasher: Place on the top rack and run a normal cycle.
Drying: Place on a cookie sheet in the oven at 200°F for about 1 hour or until completely dry. Fine sand particles may come through the fabric; simply dust them off.
In Case of Damage:
The lava sand lasts forever, but the fabric may wear out over time. Replacement bags are available for purchase. Simply transfer the sand to a new bag and:
Sew it shut if you have a sewing machine, or
Use the included fabric glue to seal the opening.
You can also repurpose an old pair of jeans: cut off a leg, glue the ends, and create a new bag for free! Watch this video to learn how.
I received this, put it in my microwave, which is not overly high-powered, and within 30 seconds there was a spark and burn. I contacted customer support, who said I must've left it in too long and offered to send a new bag. After about a month, I contacted them because I had received nothing. They then sent out a new cover. Only the cover. I had already thrown out the entire set. It seemed there was something reactive in the sand, because I've never had a problem with anything else I've microwaved. So, for me at least, this was a complete waste of money. Customer service? I was told I must have microwaved it too long, even though I followed the directions that were sent.
Fabulous customer service experience. Had issue with original and they responded by sending me a new one promptly. Really appreciated how they handled that.
I love using the lava sand bags during my massage sessions, they are scent free and so easy to wash. They hold the heat so well I like to keep them in my towel warmer then use on the clients belly or chest during my hammock massage protocol to keep the client cozy.
I like the weight of Lavayoo. I’m glad I got the size I did. The weight is calming and I heat it up right before I go to be and lay it on my chest and the warmth puts me right to sleep. I made my own cover — anyone who has an ounce of sewing skills can. I do like the fact that it doesn’t sound like it will mold and it does seem that it will last forever. I would purchase again or buy for a friend.
Awesome handmade quality, heating/cooling capability. Using on my lower back and knee. I just had meniscus surgery. The weight and heat feels amazing. No product like this!
I have the original and love it!
I needed this smaller size and it too is perfect! No smells, mold able to stress needed, hold heat well!
Just an excellent product!
My husband and I absolutely love the lavabags. They have helped with so much from anxiety to stomach aches and body pains. Pretty sure I don't go a day without using one of them, and even take them on trips they are so handy and comforting! Thank you so much for coming up with such an inventive heating/cooling product.
Got for my 9 year old daughter’s birthday after her rice sock started to smell.the Lavabag is the best ever and I love supporting a family business. We use it every night and the cover is very cute. I’d like to see more options for kids, maybe a wrap for their size too. I bought myself one for Valentine’s Day and am so glad I got it.
In fact, now my son and husband now each want their own at night. We have a new favorite gift to give!
I already did a review but I wanted to show how these lava bags are versatile. I had my old moist heating pad and I decided what would happen If I took my small Lavayoo and replace the old insert and put it in the belly of my kitty. It fits perfect! Thanks Lavayoo I am a true fan. With it being winter I love to have these little wam lava bags around.
This is the perfect size to place inside my jacket. No more being nippy when I get in my in my cold car in the morning, I slip this little guy in my jacket and it perfect. Keeps me nice a warm.
OMG 😱 I LOVE these! I saw a ad on Instagram for these heating bags. I fell in love with the Lavababies and had to order three for my grandchildren. They loved them, so I got two for myself. They work so much better than my flaxseed style. No more moist heat! Yay, and they stay heated for a hour! I might get me one more! They make great bed warmers. My feet get cold at night and this is perfect.
I’m a massage therapist and sometimes my clients that are avid runners need a little heat on their legs to warm up the muscles before we begin the work. The lavayoo weighted heating pad worked great for this. It retained the heat longer than my DIY rice sock lol!! No smell, warmed great in the microwave, small enough to store, and my clients have enjoyed working with it so far. I’m so happy with it! I will need to purchase one for my house 🤩.
We absolutely Lava our LavaYoo full back lava bag. It is so wonderful to drift off to sleep with that on my back.
It is such a dream to use it while driving my ‘61 VW Bus. As you can imagine the seats in those things are not exactly plush. The heat from the LavaYoo bay is so soothing and really helps on those long drives.
I Love the Lavayoo! I needed to replace a warmer (we call it the weasel) that had some kind of hulls in it - I really had it for years and forgot what was in it but it finally got too smelly (burnt). My Lavayoo does not smell at all and it can get warmer because I can heat it longer in the microwave. I plan to get some more as gifts for beloved family members.
The Lava Bag relieves symptoms caused by degenerative disc disease in my neck while sleeping. (Note that I had to remove the center two rows of stitches sewn into the bag in order for it to provide even support). 2-3 minutes in the microwave before bedtime, plus a pillowcase laid over the bag, and I'm good to go. Works much better than my homemade bag containing rice and flaxseed.
It works like wonders and it’s way better quality than a regular heating pad that has rice and other compounds. It doesn’t burn in the microwave and very durable so far!
All of my other warmers would always start to stink. It was not a pleasant small. So I used Bing and searched for something better. I'm glad I came upon your website. I love to warm my Lava pad and put it on my lap on a chilly morning while I sit at our table and work a crossword puzzle.
I was searching for a heating sack that didn’t smell and you can heat up enough to actually enjoy it. All the other sacks filled with grains would never be hot enough (or burn if I tried to heat it up to a good temperature) and lose heat fast. I will have to update after using it more but this one spent 2 minutes in the microwave it feels great. In addition, lavehq correct me if I’m wrong, I’m pretty sure it can stay in the microwave up to 4 minutes without burning? Which would likely be too hot for my microwave anyway. But is this sack burn proof? Guess I’ll find out (or hopefully I won’t lol). It seems to retain the heat very well and the weight is amazing. I love this sack so much that I decided to write an in depth review on it, the only thing that wasn’t apparent was the lavender smell. I actually can’t smell lavender at all but the sack is so great it doesn’t really matter. I was hesitant at first because of the higher than usual price point for sacks but trust me it is definitely WORTH. EVERY. PENNY. Plus you are supporting a small business :)
I love my lava bag so much in fact, I am using as I write this review. I pulled my lower back today moving furniture & I popped it in the microwave for 90 seconds and it is giving me such relief from my lower back pain.
I had been searching for a heat pack that could withstand hotter Temps and also that could not spoil and especially that was covered with cotton and not polyester (plastic bottle) material.
These lava sand bags meet all those requirements.
Thank you!!!
I like the heat pack for the most part, would be nice if the 3lb one was just a bit longer with the same weight to fit across your neck. Also needs some rope/cord on the ends that makes a loop to more easily position it on your back, my homemade rice packs have rope "handles" on either end. The heat pack does stay warm for quite a while and feels nice. I'd probably buy it again, but think I will try buying the sand kits and make my own sizes.
I used all three lavayoos, one for my back, one to cover low back and hip and one to cover thigh and knee. I was amazed that the heat lasted so long - probably close to an hour. I heated one up and gave it to my husband to use for his back. They do a good job of relieving soreness.
I received this, put it in my microwave, which is not overly high-powered, and within 30 seconds there was a spark and burn. I contacted customer support, who said I must've left it in too long and offered to send a new bag. After about a month, I contacted them because I had received nothing. They then sent out a new cover. Only the cover. I had already thrown out the entire set. It seemed there was something reactive in the sand, because I've never had a problem with anything else I've microwaved. So, for me at least, this was a complete waste of money. Customer service? I was told I must have microwaved it too long, even though I followed the directions that were sent.
Fabulous customer service experience. Had issue with original and they responded by sending me a new one promptly. Really appreciated how they handled that.
I love using the lava sand bags during my massage sessions, they are scent free and so easy to wash. They hold the heat so well I like to keep them in my towel warmer then use on the clients belly or chest during my hammock massage protocol to keep the client cozy.
I like the weight of Lavayoo. I’m glad I got the size I did. The weight is calming and I heat it up right before I go to be and lay it on my chest and the warmth puts me right to sleep. I made my own cover — anyone who has an ounce of sewing skills can. I do like the fact that it doesn’t sound like it will mold and it does seem that it will last forever. I would purchase again or buy for a friend.
Awesome handmade quality, heating/cooling capability. Using on my lower back and knee. I just had meniscus surgery. The weight and heat feels amazing. No product like this!
I have the original and love it!
I needed this smaller size and it too is perfect! No smells, mold able to stress needed, hold heat well!
Just an excellent product!
My husband and I absolutely love the lavabags. They have helped with so much from anxiety to stomach aches and body pains. Pretty sure I don't go a day without using one of them, and even take them on trips they are so handy and comforting! Thank you so much for coming up with such an inventive heating/cooling product.
Got for my 9 year old daughter’s birthday after her rice sock started to smell.the Lavabag is the best ever and I love supporting a family business. We use it every night and the cover is very cute. I’d like to see more options for kids, maybe a wrap for their size too. I bought myself one for Valentine’s Day and am so glad I got it.
In fact, now my son and husband now each want their own at night. We have a new favorite gift to give!
I already did a review but I wanted to show how these lava bags are versatile. I had my old moist heating pad and I decided what would happen If I took my small Lavayoo and replace the old insert and put it in the belly of my kitty. It fits perfect! Thanks Lavayoo I am a true fan. With it being winter I love to have these little wam lava bags around.
This is the perfect size to place inside my jacket. No more being nippy when I get in my in my cold car in the morning, I slip this little guy in my jacket and it perfect. Keeps me nice a warm.
OMG 😱 I LOVE these! I saw a ad on Instagram for these heating bags. I fell in love with the Lavababies and had to order three for my grandchildren. They loved them, so I got two for myself. They work so much better than my flaxseed style. No more moist heat! Yay, and they stay heated for a hour! I might get me one more! They make great bed warmers. My feet get cold at night and this is perfect.
I’m a massage therapist and sometimes my clients that are avid runners need a little heat on their legs to warm up the muscles before we begin the work. The lavayoo weighted heating pad worked great for this. It retained the heat longer than my DIY rice sock lol!! No smell, warmed great in the microwave, small enough to store, and my clients have enjoyed working with it so far. I’m so happy with it! I will need to purchase one for my house 🤩.
We absolutely Lava our LavaYoo full back lava bag. It is so wonderful to drift off to sleep with that on my back.
It is such a dream to use it while driving my ‘61 VW Bus. As you can imagine the seats in those things are not exactly plush. The heat from the LavaYoo bay is so soothing and really helps on those long drives.
I Love the Lavayoo! I needed to replace a warmer (we call it the weasel) that had some kind of hulls in it - I really had it for years and forgot what was in it but it finally got too smelly (burnt). My Lavayoo does not smell at all and it can get warmer because I can heat it longer in the microwave. I plan to get some more as gifts for beloved family members.
The Lava Bag relieves symptoms caused by degenerative disc disease in my neck while sleeping. (Note that I had to remove the center two rows of stitches sewn into the bag in order for it to provide even support). 2-3 minutes in the microwave before bedtime, plus a pillowcase laid over the bag, and I'm good to go. Works much better than my homemade bag containing rice and flaxseed.
It works like wonders and it’s way better quality than a regular heating pad that has rice and other compounds. It doesn’t burn in the microwave and very durable so far!
All of my other warmers would always start to stink. It was not a pleasant small. So I used Bing and searched for something better. I'm glad I came upon your website. I love to warm my Lava pad and put it on my lap on a chilly morning while I sit at our table and work a crossword puzzle.
I was searching for a heating sack that didn’t smell and you can heat up enough to actually enjoy it. All the other sacks filled with grains would never be hot enough (or burn if I tried to heat it up to a good temperature) and lose heat fast. I will have to update after using it more but this one spent 2 minutes in the microwave it feels great. In addition, lavehq correct me if I’m wrong, I’m pretty sure it can stay in the microwave up to 4 minutes without burning? Which would likely be too hot for my microwave anyway. But is this sack burn proof? Guess I’ll find out (or hopefully I won’t lol). It seems to retain the heat very well and the weight is amazing. I love this sack so much that I decided to write an in depth review on it, the only thing that wasn’t apparent was the lavender smell. I actually can’t smell lavender at all but the sack is so great it doesn’t really matter. I was hesitant at first because of the higher than usual price point for sacks but trust me it is definitely WORTH. EVERY. PENNY. Plus you are supporting a small business :)
I love my lava bag so much in fact, I am using as I write this review. I pulled my lower back today moving furniture & I popped it in the microwave for 90 seconds and it is giving me such relief from my lower back pain.
I had been searching for a heat pack that could withstand hotter Temps and also that could not spoil and especially that was covered with cotton and not polyester (plastic bottle) material.
These lava sand bags meet all those requirements.
Thank you!!!
I like the heat pack for the most part, would be nice if the 3lb one was just a bit longer with the same weight to fit across your neck. Also needs some rope/cord on the ends that makes a loop to more easily position it on your back, my homemade rice packs have rope "handles" on either end. The heat pack does stay warm for quite a while and feels nice. I'd probably buy it again, but think I will try buying the sand kits and make my own sizes.
I used all three lavayoos, one for my back, one to cover low back and hip and one to cover thigh and knee. I was amazed that the heat lasted so long - probably close to an hour. I heated one up and gave it to my husband to use for his back. They do a good job of relieving soreness.
