"I've used a wheat bag every winter for years and expected the same thing. This goes all the way round and stays warm for the whole episode. I haven't touched the microwave since. If you're on the fence, it's worth it."
Thermaya° Knee
Still walking to the microwave three times a night?Strap on steady warmth once and sit through the whole show.
A wheat bag comes out too hot, goes lukewarm in ten minutes and slides off when you shift. The Thermaya° Knee uses a “Wrap & Hold” design: warmth all the way around your knee, held at the level you set. Cordless, 5 heat levels, and a gentle vibration if you want it.
- Warms the front, sides and back, not just the top
- Holds the level you set: no scorching start, no cold finish
- Cordless, so you can get up for the kettle with it on
- Take the 7-Night Swap: beat your wheat bag or send it back
Launch offer: 3 free gifts + free tracked shipping with every wrap today.
7-Night Swap · 90 nights to decide
THE 7-NIGHT SWAP
Put the wheat bag away for a week. If you'd go back to it, return the wrap within 90 nights for a full refund. No hassle.
FREE TRACKED SHIPPING
Free, tracked shipping on every order across Australia.
12-MONTH REPLACEMENT WARRANTY
Soft velvet-touch fabric and a rechargeable battery. If it stops working in the first year, we replace it.
You Are Just 20 Minutes Away From Warm, Comfortable Knees Tonight
It's Not Your Knees. It's The Hot–Cold Trap You Put On Them Every Night
Your knees feel the cold first. On a winter evening the joint sits still for hours, and by the time you get up it's stiff and slow.
When your knee is warm, you should be able to get out of the chair, climb the stairs and get comfortable without thinking about it.
But think about what actually happens when you reach for the wheat bag…
It comes out of the microwave too hot to touch. Ten minutes later it's lukewarm. It's flat, so it only warms the top of the knee. And the moment you shift, it slides onto the floor.
This is why the evening turns into a juggling act, and why stiff, cold knees never feel properly warm.
Dr. Harrison Vance, the GP who advises Thermaya°, calls it the Hot–Cold Trap: too hot, then too cold, then back to the microwave. Three trips a night, all winter.
It's not your knees. Warmth was never the problem. The way you get it is.
There's a reason it feels worse in winter. When it's cold, your body sends blood to the core, and the tissues around the knee feel tighter, especially after an hour in the chair.
And that's before the part the fire services keep warning about: a wheat bag that has dried out can overheat in the microwave. So you're not just guessing how warm it is. You're guessing how hot.
“Wrap & Hold”: Warmth All The Way Around Your Knee, Held At The Level You Set
A wheat bag does one thing: it gets hot, then it stops.
The Thermaya° “Wrap & Hold” Knee Wrap does three things the wheat bag can't, all at the same time.
From the first minute you strap it on, you feel warmth at the front, the sides and the back of your knee, at a level you chose. And it's still there when the show ends.
Wrap: Soft woven fabric curves around the front, sides and back of the knee, held snug by two adjustable straps.
Hold: Pick one of 5 heat levels on the touch panel. It holds it. No scorching start, no lukewarm finish.
Move: Cordless, with a built-in 3000 mAh rechargeable battery, so you can get up for the kettle. Add a gentle vibration at one of 3 strengths, or leave it off.
Wrap, hold, move. Together they keep warmth exactly where you want it for the whole session.
The best part?
You do it in your own chair, over your trousers, with the telly on. Nothing to reheat. Nothing to balance.
We Read The One-Star Reviews So You Don't Have To Live Them
Before we settled on the Thermaya° Knee, we read hundreds of reviews from Australians with stiff, cold knees. Three complaints came up again and again: too hot, then too cold. Flat. Slides off.
So the Thermaya° Knee was built to fix those three, using the same kind of warmth you already trust, in a shape that actually stays put.
Then we asked about 3,000 people to try it in person and score it on price, effectiveness, comfort and quality. They gave it 4.8 out of 5.
And it costs less than one winter of heat patches.
What People Notice From The First Evening
The first thing people say is almost always the same: “Oh. It's all the way round.”
Then they stop thinking about it, which is the whole point.
Within a few evenings with the Thermaya° Knee, here's what you can expect to notice:
- Warmth on the front, sides and back within minutes
- A whole episode without getting up for the microwave
- A wrap that's still in place when you shift in your chair
- The same level tonight as last night, with no guessing
In just 20 minutes an evening, you can give your knees the warm, comfortable wind-down they've been missing.
No Microwave. No Cord. No Learning Curve.
The best part about the Thermaya° Knee is that it's so simple to use.
First, no cord. It charges by USB-C like your phone, from a built-in 3000 mAh battery, so it's ready when you sit down.
The second step is to wrap it around your knee over your trousers, pull the straps snug and tap the panel to pick one of 5 heat levels, adding the gentle vibration if you like. Sit back and relax while the wrap does the rest.
Make it part of your evening and your knees get the same steady warmth every night, without the microwave, the patches or the guesswork.
Take The 7-Night Swap. You Have 90 Nights To Decide
The dare: Put your wheat bag in the cupboard for 7 nights and use the Thermaya° Knee instead. If you'd rather go back to the microwave, send it back.
Here's the deal: We believe in this wrap so much that we don't want you to keep it unless you're certain it's better than what you use now.
That's why we offer a 90-night home trial.
Simply get yourself a Thermaya° Knee today, use it every evening for 90 nights, and then decide. If you're not absolutely happy with the warmth, we will issue you a full refund.
In other words, you only keep it if it truly beats the wheat bag and earns its place on your chair.
Wheat Bag vs Thermaya° Knee: One Guesses, One Holds
The wheat bag starts too hot, goes cold and slides off. The Thermaya° Knee wraps, holds the level you set and stays put.
Thermaya° Knee
Front, sides and back of the knee, held snug by two straps.
Pick one of 5 heat levels on the touch panel. It stays there.
A built-in 3000 mAh battery, charged by USB-C. Get up for the kettle with it on.
A$89.95 once. 90-night home trial and a 12-month replacement warranty.
Over your trousers, with the telly on. 20 minutes and you're done.
The screen shows the level you picked. It stays there, with no microwave in the loop.
The wheat bag
Microwaved wheat bags have been measured at 57–70 °C.
Ten minutes later it's lukewarm and you're back at the microwave.
It sits on top of the knee. The sides and back get nothing.
Shift in your chair and it's on the floor.
Every night, two or three times. That's the whole evening.
A dry bag can overheat in the microwave. Fire and Rescue NSW has recorded 35 wheat-bag fires since 2011.
Real People, Real Warm Evenings: 4.8/5 from 3,000 people surveyed
"Finally, Warm Knees All Evening!"EXAMPLE
"I've had stiff, cold knees for years and the wheat bag was a nightly ritual. The first evening I used the Thermaya° Knee, I could feel the warmth go all the way round. A week later I realised I hadn't opened the microwave once. It's on every night now while I watch the news."
"It Stays Put. That's The Whole Thing."EXAMPLE
"Ok, mine got here last week. I was sceptical, but the straps pull it snug and it doesn't budge when I shift in my chair. Level 2 is plenty most nights and level 5 when it's freezing. So easy to use, and no more lukewarm bag halfway to the floor."
"Didn't Expect It To Be THIS Comfortable!"EXAMPLE
"I was not expecting this! Warm, not scorching, and it holds the level you pick. My husband said I stopped fidgeting in the evenings. Bought him one for his shoulder too. Definitely worth trying!!"
From The Box To Warm Knees In 3 Steps
Strap it on, pick your level and enjoy the warmth!
Take The 7-Night Swap Below, With 3 Free Gifts
Launch Offer: 3 Free Gifts + Free Tracked Shipping
Swap Your Wheat Bag For 7 Nights. You Have 90 To Decide. 3 Free Gifts Included!
Order Today and You'll Get:
- Thermaya° Knee (wrap + USB-C cable + extension strap)
- 90-Night Home Trial
- FREE The Warm Knee Evening Guide (PDF)
- Fast & FREE Tracked Shipping
- FREE 30-Night Warm Knee Tracker (printable)
- FREE 12-Month Replacement Warranty
Note: Only available on the official Thermaya° store
THE 7-NIGHT SWAP
90 NIGHTS TO DECIDE
Here's the dare. Put your wheat bag in the cupboard for 7 nights and use the Thermaya° Knee instead. If you'd rather go back to the microwave, send it back.
There's no rush: your order is protected by our 90-night home trial. If the Thermaya° Knee doesn't leave your knees warmer and more comfortable than your wheat bag, or you simply don't love it, let us know at any time in the next 90 nights and we will refund every cent. No questions asked.
We answer every email within one business day. Please contact us if you need any help.
We're Getting Noticed!
[DATO REAL] Añade aquí solo logos de medios que hayan hablado de Thermaya° de verdad. Si no los hay, elimina esta sección.Frequently Asked Questions
Will the Thermaya° Knee keep my knees warm all evening?
It holds the level you set for the whole session. That's the difference from a wheat bag, which is lukewarm in about ten minutes. We suggest up to 20 minutes at a time, over clothing, then a break. You can run another session later in the evening.
How soon will I feel the warmth?
Within a few minutes of switching it on. Start on the lowest level the first evening and work up. Most testers settle on the middle levels and keep the top ones for the coldest nights.
How long should each session be?
No need to overdo it. Up to 20 minutes at a time, over your trousers or pyjamas, is plenty. It's like having a wheat bag that never goes cold, ready whenever you sit down.
Do I have to plug it in?
No. The Thermaya° Knee is cordless, with a built-in 3000 mAh battery that charges by USB-C like your phone. Charge it, strap it on and get up for the kettle whenever you like.
Will it fit me? Can I use it on my shoulder or elbow?
Two adjustable straps pull it snug around most knees, and the same wrap fits your shoulder or elbow when they need a turn. It weighs about 270 g and uses soft velvet-touch fabric.
Please note: sizes are approximate. If it doesn't fit, the 90-night home trial covers you.
A wheat bag costs A$10. Why would I pay A$89.95?
If your wheat bag keeps you warm for the whole evening, keep it. This is for people who are tired of reheating it three times a night. The Thermaya° Knee is one payment with a 12-month replacement warranty, so across a single winter of evenings it works out at under a dollar a night. A winter of heat patches at three a week costs A$150 to A$180.
I've bought gadgets that died after a month. Why is this different?
That's the most common complaint we read about this whole category, so we built the answer into the offer. You get 90 nights to try it at home and a 12-month replacement warranty: if it stops working in the first year, we replace it. And there's nothing to learn: charge it like your phone, strap it on, tap the panel.
How long does delivery take?
We dispatch within 1 to 3 business days and delivery takes around 9 to 15 days, tracked all the way. We tell you that upfront so there are no surprises.
I'm hopeless with gadgets. Is it complicated?
No. Charge it like your phone, strap it on and tap the arrows on the panel. The number on the screen is your level. That's all there is to it.
Is it sold on Amazon or in shops?
No. The Thermaya° Knee is only available on the official Thermaya° store. That's how the 90-night home trial and the 12-month replacement warranty are honoured.
What if it doesn't work for me?
Then you send it back. Take the 7-Night Swap, and if you'd go back to the wheat bag, email us within 90 nights for a full refund. There's a 12-month replacement warranty on top.
