The alarm goes off and before you are properly upright you notice it again. Your back feels stiff, your shoulders are locked and for the first few minutes you move more carefully than you would like.
It usually gets better as the morning goes on. The next day it often starts all over again. Many people then look for the cause in the mattress, in their age or in the way they sleep. Something else may be behind it.
What you have probably already tried
Anyone who regularly wakes up with a stiff back has usually tried a few things already:
Heat and stretching can loosen the muscles for a while. The next morning the stiffness is often back.
A new mattress can make sense if the old one does not suit you, but it does not automatically remove every cause of morning tension.
Painkillers can ease the complaints for a while, but they do not necessarily change what is straining the muscles at night.
Physiotherapy can do you noticeable good. Between two appointments, though, many people lack a way to work on relaxation regularly.
The problem is that many of those measures only work in the short term, which is why the complaints can keep coming back. And it still does not explain why your back gets stiff at night in particular.
The actual reason
A stiff back in the morning does not have to be down to your age or your mattress. One possible cause is that the muscles stay tense after a long day and do not relax enough during the rest phase.
The rest phase should give the body the chance to switch back and let tense muscles go. Under continuous strain that does not always work well enough.
If the muscles stay tense at night, that feeling can last until the next morning. That is why it makes sense to start during the rest phase, and not only once you are up.
It also explains why short-term measures on their own are often not enough: they do not necessarily act during the phase in which your body should be recovering.
Does this sound familiar?
These are the situations that come back most often with people who wake up with a stiff, locked back.
- You wake up in the morning with a stiff or locked back
- The first steps out of bed are careful, it only loosens up later in the day
- Heat, stretching or a painkiller help for a while, the next morning it is back
- You have already replaced the mattress or the pillow without it making a real difference
- Between two physio appointments you do nothing at all about the tension
Recognise yourself in three or more of these? Then you are in the group andullation is meant for.
What ANDUFIT does differently
With andullation, gentle low-frequency vibrations are carried through the mattress into the body. They support the relaxation of the muscles and stimulate circulation while you lie in bed. The underlying andullation technology is also used in physiotherapy. You do not have to do exercises for it or set time aside, because it happens in your own bed.
5 to 40 HzLow-frequency andullation, the same researched technology used in physiotherapy.
7 motors, 5 zonesThe seven motors spread the vibrations across five body zones, among them back, shoulders and neck.
Through the mattressUp to 45 cm thick, 7 intensity levels. You keep your own bed.
Without effortYou pick one of 20 programmes, or let VitaCheck choose a setting after a 60-second scan.
That makes ANDUFIT different from a classic vibrating mat and from a new mattress alone. The andullation works specifically on the muscles and on circulation. Changes can be followed through the VitaCheck readings, among other things.
What Stefan noticed after the first use
With VitaCheck, ANDUFIT measures an energy level through a 60-second face scan, before and after use. With Stefan there was a clear change in the measured value after the very first night.
Before
38%
VitaCheck energy level
After the first night
89%
VitaCheck energy level
“I slept badly for years because of my back. After the very first night the stiffness was noticeably less, and my VitaCheck reading jumped from 38 to 89 percent.”Stefan, 52
What others say
Similar experiences come back in the reviews from other users. In more than 120 verified reviews people mention less morning stiffness, a more relaxed feeling in the body and better sleep, among other things.
“I actually wake up pain-free in the mornings now. My back score in the app went from 7 to 3, I never saw that coming.”
“I relax for a bit every evening and my back feels loose. No more painkillers, finally.”
“Three pills a day for my back. Since then I don't need any, which pretty much says it all.”
“Years of back pain and now I just get up in the morning with no trouble. Amazing.”
“My scoliosis causes constant tension. This loosens it every evening, my physio notices the difference.”
“My orthopedist was stunned. The pain down my leg is almost gone after six weeks, I'd never have thought it.”
What the user data shows
ANDUFIT surveyed its own users and analysed the VitaCheck readings. It covers the reports and values of more than 7,260 users over four weeks of daily use. The back score in particular developed noticeably.
58 → 84
Back score
42 → 68
HRV (ms)
52 min → 1:24
REM sleep per night
58 → 81%
Energy level
Averages, self-reported over 4 weeks of daily use, measured with VitaCheck. ANDUFIT’s own data, without a control group. Results can differ from person to person.
What studies on andullation show
The andullation technology itself has been studied scientifically as well. A study published on PubMed looked at, among other things, the effects on the experience of pain and on physical well-being.
Less pain, a better feeling and lower blood pressure after andullation therapy
Parras-Moltó A, Ribas-Serna J. Dose-Response, 2019;17(2)
-52.3% experience of pain
+45.1% well-being
+34.5% pain threshold lower back
-6.4 / -4.7 mmHg blood pressure
-64 mL less swelling in the lower legs
Study with 50 people without a control group, published on PubMed. The pain threshold was measured with a pressure gauge: more pressure was needed before it hurt. ANDUFIT is not a medical device and promises no cure. With persistent complaints, consult your doctor.
ANDUFIT in numbers
13,129
satisfied customers in Europe
1,850,010
hours of ANDUFIT run
9
countries in Europe
10
published studies
What you may still be wondering
What is the difference with an ordinary vibrating mat?
ANDUFIT works with seven andullation motors that spread low-frequency vibrations across five body zones. That way it is not limited to one spot. The underlying andullation technology is also used in physiotherapy.
I have already been to the doctor and the physio.
You may know andullation from there. ANDUFIT makes the technology available at home, so you can use it regularly instead of depending on separate appointments.
Does this work through my mattress?
Yes, through mattresses up to 45 cm. With seven intensity levels you set how strong it feels yourself.
Does this really help with back pain?
The effect of andullation on, among other things, the experience of pain and on circulation has been studied scientifically. ANDUFIT is not a medical device, though, and promises no cure. With persistent complaints, consult your doctor.
What regular treatments can cost over time
A physio session costs roughly 50 to 80 euro depending on the practice, and has to be repeated for regular treatment.
Other measures bring recurring costs with them over time as well.
ANDUFIT you buy once, and you can use it regularly in your own bed after that.
You can test for yourself whether ANDUFIT suits you

Whatever your day brings
Let it go
“The first few days it felt odd under the mattress. After a week I was used to it and the effect is really good.”
Andreas L., Austria
4,7 · based on 448 reviews
14 nights to try
Test ANDUFIT for 14 nights in your own bed and use it the way you would use it in the longer term. If you do not notice a difference, you send it back and get your money back.
What it could do for you
- Deep back relaxation. The vibrations travel along your spine and release the tension of the day, right where it builds up.
- Less stress. Slow, rhythmic stimulation calms the nervous system, so body and mind wind down before you fall asleep.
- Longer REM sleep. A relaxed body reaches deep and REM sleep more easily and stays there longer, so you wake up restored.
- Faster recovery. Better circulation and more REM sleep speed up how quickly your body bounces back.
Free delivery and free return, 2-year warranty.