Nishikawa’s Mattress AiR SI for comfortable and quality sleep with no back pain

Humans spend one third of their lifetime sleeping. Quality sleep, therefore, is highly important as breathing and eating healthily, because during our sleep, the body enters the maintenance mode in which every part is repairing itself while restoring energy and balance. Most definitely, there are multiple factors of a good night’s sleep, including special bedding designed for health.

With the goal to promote the importance of healthy sleep, Nishikawa has invented Mattress AiR SI that helps you get a good night’s sleep and alleviates back pain. It’s your answer to comfortable and quality sleep.

Get to know

Mattress AiR SI

Mattress AiR SI is the bedding product by Japan’s number one mattress brand Nishikawa. Part of the AiR series, the SI model was first invented back in 1566 and has since been trusted by Japanese people for 458 years. We are sincerely dedicated to promoting comfortable and quality sleep for our customers.

Nishikawa also came up with Sleep Science that has been thoroughly studied in the Japan Research Laboratory where we found out that quality sleep is all about the distribution area of pressure, in which pressure should not be compressed at a specific part of the body. Moreover, the sleepers also need to be able to change their position easily. With no interruption, we can manage to have a deep and comfortable sleep.

Accordingly, our product is innovated with the feature of pressure distribution taken into account. To distribute the pressure evenly, it is designed to have foam bumps across the surface, all of which are aligned into a block of nine (3x3) that independently supports the body weight. Sleeping on this mattress, which is like sleeping on a cloud with air flowing around, will help alleviate back pain and also discomfort on other body parts.

Furthermore, Mattress AiR SI is made of quality urethane foam that is widely used in the fields of science and technology.

This is the unique feature of Nishikawa’s healthy mattress.

New Healthy Mattress Model [Mattress AiR SI]

Introducing the latest addition to Nishikawa’s AiR series, the SI model has recently been released. Developed using a combination of original and new materials, including three different types.
* Featuring a newly designed foam bump structure and a special 3D cross-slit X-shaped structure, which provides enhanced comfort and quality sleep throughout the night.

*Pending patent/product design registration.

This is where Mattress AiR SI comes into play. By evenly dispersing body pressure that can be a consequential cause of other health problems, the innovation is aimed at supporting people experiencing back pain or other muscle discomfort after waking up, or those undergoing pain in their neck and shoulders.

In addition, our product is also ideal for the light sleepers because it helps lessen the effect of roll-over from their partner. The foam bumps are able to smooth roll-over thanks to their independent blocks that allow the sleepers to change their posture without interrupting their partner. You can rest assured to move freely on Mattress AiR SI.

Highlight of Our Latest Bedding Innovation

1.Ensures an uninterrupted night’s sleep with no back pain (features the ability to evenly distribute body weight, making it easy to roll over or change posture)

1st layer (Pressure-Reducing Layer) Made with Somnifoam, a high-flexibility material that provides a soft yet firm touch. The initial feel delivers comfort and a quality sleep experience.

2nd layer (Pressure-Distributing Layer) Features a three-dimensional cross-slit structure that evenly supports every part of the body while lying on your back.

3rd layer (Height-Adjusting Layer) The cross-slit design enhances cushioning to support your body weight when sleeping on your side and maintains firmness with the ability to bounce back to its original shape.

4th layer (Supportive layer) Constructed from a highly durable and lightweight material, it stabilizes sleeping posture and allows for easy rolling over or changing positions.

**The more body weight that presses onto the mattress, the firmer and stronger it becomes.

The weight of the floor-type mattress (size S) is approximately 6~7% lighter than the previous AiR SI model!

2. Improved Strength and Durability

* Repeated compression tests do not reduce the mattress’s strength. The firmness of the mattress remains the same as when it was first used, allowing for long-term use and helping to maintain a good sleeping posture.

3. Clean and Hygienic

* The outer fabric is treated with antibacterial and deodorizing technology, ensuring safe and hygienic use. The mattress cover fabric can be removed and machine washed easily.

4. Environmentally Friendly x Compression Packaging

* All smooth knit and mesh outer fabrics have been switched to recycled polyester.
The compressed material also helps reduce carbon dioxide emissions during transportation.

5. Redesigned with Nishikawa’s Unique Style

* The distinctive “straight line and dot design” from the current model has been retained, with minor changes to the materials and sewing. The larger slit mesh design adds more impact and a stylish impression.

Comparison of Body Pressure:

These illustrations compare the body pressure distribution from each sleeping posture—lying on the back and lying on the side—on a normal mattress and Mattress AiR SI.

The one with green, dark green, and yellow areas shows the balanced distribution,

whereas the one with red and dark red areas indicates a high level of pressure on specific body parts.

It is clear to see that Nishikawa’s mattress is able to balance the pressure distribution across the body, as there is no red area appearing on the Mattress AiR SI illustrations.

These special features and qualities crown Mattress AiR SI as Japan’s number one bedding product that has been trusted for centuries. In addition to the quality material, this mattress model is also able to distribute body pressure evenly, allow great airflow, alleviate back pain and muscle discomfort, and give you a good night’s sleep throughout the night. It is the real answer to quality sleep for both of you and your sleeping partner.

The Products of the AiR SI Series

“AiR SI – Mattress” is a model that has 9 centimeter and 14 centimeter thickness, available in two textures: hard and regular.

The mattress with a regular texture (9 cm. and 4 cm. thick)

AiR SI with the hard texture

9 cm. and 14 cm.

AiR SI with the regular texture

9 cm. and 14 cm.

AiR SI – Bed Mattress

“AiR SI – Bed Mattress” is a model that has a 14-centimeter thickness, available in two textures: hard and regular.

1. AiR SI – Hard Bed Mattress (14 cm)

The bed mattress with a hard texture (14 centimetres thick)

Size & Price
3 ft. : Price 132,600 baht
3.5 ft. : Price 146,600 baht
5 ft. : Price 223,100 baht
6 ft. : Price 245,700 baht

2. AiR SI – Regular Bed Mattress (14 cm)

The bed mattress with a regular texture (14 centimeters thick)

Size & Price
3 ft. : Price 117,800 baht
3.5 ft. : Price 133,300 baht
5 ft. : Price 209,800 baht
6 ft. : Price 232,400 baht

AiR SI – Mattress

“AiR SI – Mattress” is a model that has a 9-centimeter thickness, available in two textures: hard and regular.

1. AiR SI – Hard Mattress (9 cm)

The mattress with a hard texture (9 centimeters thick)

Size & Price
3 ft. : Price 74,600 baht
3.5 ft. : Price 80,700 baht
5 ft. : Price 99,200 baht
6 ft. : Price 130,100 baht

2. AiR SI – Regular Mattress (9 cm)

The mattress with a regular texture (9 centimeters thick)

Size & Price
3 ft. : Price 65,200 baht
3.5 ft. : Price 71,700 baht
5 ft. : Price 89,500 baht
6 ft. : Price 120,200 baht

ONLINE SHOP

AiR SI – Hard Bed Mattress (14 cm)

132,600.00 ฿

Introducing the latest addition to Nishikawa’s AiR series, the SI model has recently been released.
Developed using a combination of original and new materials, including three different types.
* Featuring a newly designed foam bump structure and a special 3D cross-slit X-shaped structure, which provides enhanced comfort and quality sleep throughout the night.

Size & Price
3 ft. (14x91x197 cm) Price 132,600 baht
3.5 ft. (14x105x197 cm) Price 146,600 baht
5 ft. (14x153x197 cm) Price 223,100 baht
6 ft. (14x183x197 cm) Price 245,700 baht

AiR SI – Hard Mattress (9 cm)

74,600.00 ฿

Introducing the latest addition to Nishikawa’s AiR series, the SI model has recently been released.
Developed using a combination of original and new materials, including three different types.
* Featuring a newly designed foam bump structure and a special 3D cross-slit X-shaped structure, which provides enhanced comfort and quality sleep throughout the night.

Size & Price
3 ft. (9x91x197 cm) Price 74,600 baht
3.5 ft. (9x105x197 cm) Price 80,700 baht
5 ft. (9x153x197 cm) Price 99,200 baht
6 ft. (9x183x197 cm) Price 130,100 baht

AiR SI – Regular Bed Mattress (14 cm)

117,800.00 ฿

Introducing the latest addition to Nishikawa’s AiR series, the SI model has recently been released.
Developed using a combination of original and new materials, including three different types.
* Featuring a newly designed foam bump structure and a special 3D cross-slit X-shaped structure, which provides enhanced comfort and quality sleep throughout the night.

Size & Price
3 ft. (14x91x197 cm) Price 117,800 baht
3.5 ft. (14x105x197 cm) Price 133,300 baht
5 ft. (14x153x197 cm) Price 209,800 baht
6 ft. (14x183x197 cm) Price 232,400 baht

AiR SI – Regular Mattress (9 cm)

65,200.00 ฿

Introducing the latest addition to Nishikawa’s AiR series, the SI model has recently been released.
Developed using a combination of original and new materials, including three different types.
* Featuring a newly designed foam bump structure and a special 3D cross-slit X-shaped structure, which provides enhanced comfort and quality sleep throughout the night.

Size & Price
3 ft. (9x91x197 cm) Price 65,200 baht
3.5 ft. (9x105x197 cm) Price 71,700 baht
5 ft. (9x153x197 cm) Price 89,500 baht
6 ft. (9x183x197 cm) Price 120,200 baht

X