🏀 Free shipping on orders over $50 · 30-day free returns · 100% authentic

【Display Item】Nishikawa "AiRSI" Double Size Mattress, 14cm Thick, Approx. ¥286,000

★★★★★ 4.5 rating · 26 reviews · 257+ sold
$299.00 $388.7 30% OFF
Flash Sale ends in
00d 00h 00m 00s
100% Authentic · Money-back guarantee
Free Express Shipping · 2-5 day delivery
30-Day Free Returns
6-Month Quality Warranty

Product Details

■ Product Overview
Introducing the AiR SI double-size mattress from Nishikawa's conditioning mattress series.

This is the SI model, positioned as a high-end option within the AiR series, known for its use by top athletes.
It features a unique conditioning design that supports the body at points, with excellent body pressure dispersion performance due to its special three-dimensional cross slit structure (DR4 structure).
The sporty and futuristic design, based on black with red lines, sets it apart from ordinary bedding.
This is a bed mattress type with a thickness of approximately 14cm, achieving both a firm sleeping feel that suppresses bottoming out and high support performance.


■ Product Condition
Minor scuffs and small scratches from display and handling are present, but there are no noticeable damages or defects that would impede use. Overall, the condition is good.



■ Size (approx.)
Width: 140cm x Depth: 195cm x Height: 14cm (approximate measured values)


■ Shipping Information
[Pack and Ship Mercari / Free Shipping]
The delivery service will handle packing, moving, and setup.

*As this is a large item, the seller cannot determine if it can be brought into your space.
Please be sure to check the product dimensions and your access route.
*Returns or cancellations due to inability to bring the item in cannot be accepted.
*Shipping will be via Pack and Ship Mercari (anonymous shipping).
Therefore, the buyer's personal information (name, address, etc.) will not be visible to the seller.
Additionally, the shipping destination is automatically set to the address registered by the buyer on Mercari, and the seller cannot change the shipping destination due to system specifications.
Please understand this in advance.


■ After Purchase
After purchase, the buyer will need to enter their desired delivery date.
(The seller cannot set the date.)


■ Important Notes
*Unless stated as new or unused in the title, the item is used.
*Receipts and similar documents are not issued.
*Direct pickup is not available.
*As the product is stored in a warehouse, additional photos cannot be taken.
*The first and last images may include reference images. Please check the images from the second one onwards for the actual condition of the item.

Category
Mattresses
Brand
nishikawa
Condition
No noticeable scratches or marks
Shipping
Included in price (by seller)
From
Gifu

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (26)

4.5
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User6494362
★★★★★
2026-11-08

Buon rapporto qualità-prezzo. Tutto è andato come previsto.