A recovery mattress topper is not fitted in the same way as a comfort mattress topper. Using the IAKOTA mattress topper It involves four steps, and just three mistakes are enough to undo the effect – one of which almost everyone makes on the first night. Here are the instructions, what to expect, and after how many nights it’s reasonable to start assessing the results.
How should the IAKOTA mattress topper be used on a daily basis?
Place the mattress topper flat on top of your mattress, cover it with a cotton fitted sheet and nothing else, plug the cable into a grounded wall socket, then sleep on it every night. No settings, no batteries, no time limit. Give it about thirty nights’ time before making up your mind.
It is deliberately short, because the device is passive. It has no switch, no programme and no settings to adjust. What requires attention is not how to use it, but its installation : one layer too many between you and him, and it’s not much use anymore.
The principle is based on two simultaneous mechanisms. The fabric reflects back to the body some of the infrared radiation that the body naturally emits, in the 3 to 20 micrometre band, with an emissivity of around 0.95 in this band. And the earth wire dissipates the electrostatic charges accumulated during the day. No energy is added; it is simply redistributed. Details of how it works are explained on our page Minoxis technology.
Installation: four simple steps and that’s it
- Place the mattress topper flat on top of the mattress, under the sheet, and not on top of the duvet or on a bare bed base.
- Cover it with a cotton fitted sheet. This is the only fabric that should be between the mattress topper and you.
- Plug the lead into a grounded wall socket, or on a stake driven into the ground if you are sleeping outdoors or in accommodation without a ground connection. The cable does not carry any current towards you; it simply provides a path for the charges to flow away.
- Sleep on it – every night. Regular use is more important than a single night’s stay.
There is one point that is worth checking rather than simply assuming: Not all wall sockets are actually earthed, even when they are wearing the brooch. This is common in older pieces, and it isn’t noticeable. A plug tester At €19, it does the job in three seconds, whether the indicator light is on or off. If there’s no earth connection, the mattress topper will still reflect your infrared signals, but you’ll be missing out on half the device’s functionality.
The three mistakes that negate the effect
- The waterproof mattress protector. This is the most common – and most costly – mistake. A plasticised mattress protector, a coated mattress cover or a waterproof anti-dust mite cover creates a barrier between the fabric and you. A cotton fitted sheet, and nothing else.
- The lead is either unplugged or plugged into a socket without an earth connection. The device still works, but without the earthing function. If you do not have an earth connection available, please be aware of this and assess the situation accordingly, rather than concluding that the product does not work.
- Waiting for the heat. The infrared rays in this band do not generate heat, and a mattress topper that does not generate heat is not a mattress topper that does not work. If you’re looking for an immediate feeling of warmth, this isn’t the right product for you, and it’s better to know this before you buy than after.
After how many nights can we make a judgement?
One night doesn’t tell the whole story. Neither does one week. The background noise of sleep is too varied: a late night out, a heavy meal or a two-hour time difference are enough to shift your readings far more than any passive device.
Thirty nights is the correct unit of measurement, and the median is the key figure, not the best night’s sleep. If you wear a smartwatch, you already have the most useful indicator: heart rate variability upon waking, which we explain in this article on VFC. Record your sleep for fifteen nights without the mattress topper, then fifteen nights with it, and compare the two medians. That’s the only honest way to answer the question for your own body.
If you don’t have a watch, two subjective indicators are better than nothing, provided you note them down every morning rather than reconstructing them from memory: how easily you wake up, and how your legs feel on the second day after a tough session.
What the CNEA study shows, and what it does not show
What was measured, and how. Twenty-seven athletes completed a trail running session involving uphill and downhill sections, repeated six times at 90 % of their maximum heart rate. Their strength was measured on an isokinetic machine before the exercise, then 24 hours and 48 hours afterwards, under three conditions, one of which involved no equipment at all. This is an instrumental measurement, not a satisfaction questionnaire.
The figure, and what it means. After 48 hours, the group who had been sleeping on the mattress topper had returned to 98,6 % of its initial strength, compared with 95,6 % for the group without the device. Isokinetic strength describes the force a muscle can generate at a controlled speed: the difference therefore relates to a regained capacity, rather than a reported sensation.
The scope. Twenty-seven participants divided into three groups, with approximately nine people per condition. The study was commissioned by IAKOTA, conducted at a national training centre, and has not yet been published in a peer-reviewed journal. A PhD programme is currently underway at the CNEA, running until 2028, to continue this research.
You can check this for yourself. Your thirty nights of VFC, following the method described above.
User feedback points in the same direction, although the necessary caution should be exercised as these observations were gathered outside the protocol: we have compiled them, including the mixed reviews, on the page Reviews of IAKOTA mattress toppers.
Maintenance and service life
Washing is carried out in cold water, by hand, using gentle rubbing motions. No washing machine, no tumble dryer, no fabric softener. The active layer is a surface treatment applied to the fabric: it is worn down by abrasion and heat, not by time.
Under these conditions, the fabric can withstand 150 to over 500 washes, or between three and twelve years’ use, depending on how often you wash it. That’s also why a cotton fitted sheet serves a dual purpose: it protects the mattress topper and means you don’t have to wash it as often.
Which model for which purpose?
All three models feature the same technology. What differs is their thickness, size and intended use.
| Model | From | Who is it for? |
|---|---|---|
| Terra Nomad | 249 € | The fold-away, portable design: for travelling, competitions and spare bedrooms |
| Terra Home | 449 € | The master bedroom, for use every night |
| Terra Cocoon | 629 € | Ten centimetres thick, for those looking for a comfortable night’s sleep as well as cutting-edge technology |
If you’re primarily using it for sport, we’ve set out the options and guidelines on the page sports recovery mattress topper.
Frequently asked questions
Should you sleep directly on the mattress topper?
No. A cotton fitted sheet goes on top. What you mustn’t put in between is a waterproof mattress protector or a coated mattress cover, as these prevent contact between the fabric and the body.
Can you use it without plugging it in?
Yes. The infrared reflector works without any external power source. However, you do lose the earthing function, which is the other half of the device.
Is it getting heated?
No. Infrared radiation in the 3 to 20 micrometre band does not produce a sensation of heat. The mattress topper uses no power, contains no electronic components and emits no active radiation.
How can I tell if my earth connection is actually working?
Using a socket tester, which costs €19. The presence of an earth pin on the socket does not guarantee that it is connected, particularly in older properties.
How long does it take to see any results?
Allow for around thirty nights, and compare medians rather than individual nights. If you’re tracking your heart rate variability upon waking, fifteen nights without it followed by fifteen nights with it will give you a useful comparison.
Is it a medical device?
No. IAKOTA mattress toppers are wellness products. They are not intended for diagnostic, preventative or therapeutic purposes, and are not a substitute for medical care.
The three models, priced from €249 to €899, are built to last for years and can be tried out risk-free: 30 days to change your mind, free returns, label provided.
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