Mattress Double Serta Posture Basic 7.7F1N

30,000 yen off for cash on delivery!

Serta Mattress: The #1 Bed Share in the US

Mattresses used in hotels, where the utmost care is taken to provide comfortable sleep for everyone, demand a perfect sleeping experience. Serta mattresses are adopted by many hotels, including luxury ones, and hold the #1 share in hotel beds in the US.
Serta mattresses in Japan are manufactured in Japanese factories under a license agreement between Dream Bed Co., Ltd. and Serta Inc. of America.
Dream Bed Co., Ltd. is the only bed manufacturer in Japan that can provide the technology, know-how, quality, and trust cultivated by Serta.
They are improved to suit the Japanese living environment and the body types of Japanese people, manufacturing unique Japanese mattresses.
The Serta Trust Comfort 7.7 Series uses 7.7-inch pocket coils known for their durability and quality. The coils themselves have a thinner wire diameter and a larger stroke, fitting your body more gently. With over 1,000 coils in the PS size, it supports your body finely and achieves a superior sleeping experience. Furthermore, it uses ZC urethane in the filling, which excels at dispersing body pressure.

Serta Posture Basic 7.7F1N
High Resilience Foam, Alternating Arrangement

Double: W139×D196×H31

Fire Blocker
This mattress is made with flame-retardant material that meets fire safety standards.
Healthy Air-let
To help release moisture, especially in humid Japan, three rows of air vents are created, allowing the mattress to breathe with every turn.

When a person lies on a mattress, approximately 40% to 45% of the load is placed on the hips and buttocks. By reinforcing the hip area, where the load is particularly concentrated, we have improved durability and achieved balanced load distribution.
This F1N type features a 5-zone ultra-high density alternating arrangement. Coils with a wire diameter of 1.5mm are placed in the center and head/foot sections, while coils with a wire diameter of 1.3mm are used in other areas. Additionally, thicker coils are arranged on both sides, where people often sit, to prevent deformation.

*Used for 1.5 years
*Purchased from an authorized dealer for 239,800 yen
*Includes a 2-year warranty (until November 2023)
*No pets, used in a high-rise apartment
*No noticeable stains (always used with sheets and covers)
*Regularly rotated and flipped to prevent unevenness and deformation

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