Purchased Yamada's original sofa bed with adjustable backrest and armrest angles.

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update Last updated: July 14, 2026 at 1:28 PM

I went to Yamada Denki Tecc LIFE SELECT Shonan Hiratsuka Store to replace the leather sofa bed I had purchased from Otsuka Kagu in Hiratsuka for 100,000 yen in the 2000s, and purchased Yamada's original sofa bed YSB160001BK, which has an adjustable backrest and armrest, for 51,480 yen including tax.

This includes a 5-year free warranty, 43,780 yen including tax, 3,300 yen for furniture pick-up and transportation, and 4,400 yen for delivery and installation.

Originally, I had planned to purchase a leather sofa bed, but at the current market price, I would have had to be prepared to spend at least 200,000 to 300,000 yen for leather, so I decided to give up on leather and settle for a synthetic leather sofa bed.

By the way, below is the previous genuine leather sofa bed that I bought from Otsuka Kagu. The original white color has faded, the seating area has become depressed and worn out, and some of the leather has peeled off.
I tried to cover it up with a makeshift synthetic leather repair sheet I bought from Amazon and covered it with a sofa bed cover, but I had reached my limit.

You may be able to buy a bed or sofa bed a little cheaper online, but since you will be using it for a long time, it is better to actually see the item and check the comfort, comfort, material, quality of the product, etc., and make sure you are satisfied with the purchase.

In addition to the fact that you cannot check the actual furniture as mentioned above, most places do not have a furniture pick-up service, and if you are purchasing a new piece of furniture, you will have to incur the hassle and expense of having to dispose of the furniture at the same time as the purchase.

About Yamada Original YSB160001BK Sofa Bed

When purchasing, I actually consulted with Chappie, but they didn't offer much of the product I wanted.
I decided to take Chappie's opinion only as a reference and decide after looking at the actual product, so I took a bike to the local Yamada Denki Tecc LIFE SELECT Shonan Hiratsuka store and selected the product (YSB160001BK) after examining various products there.

Yamada's furniture lineup is based on products from Otsuka Kagu, which was merged with Yamada Denki in 2022, and includes Yamada's original products.When purchasing, we also offer a discounted furniture pick-up service.

Therefore, if you are not looking for high-quality products from the Otsuka Kagu series, I think you can replace your furniture at a relatively reasonable price by choosing sale products such as Yamada Original.

The selection criteria for a replacement are as follows.Basically, the specs are the same as the sofa bed we used before, and we avoid cloth based sofa beds for cleanliness and ease of cleaning, and instead choose leather based sofa beds. *The specifications of the previous sofa bed are in parentheses.

  • You can take a nap comfortably
  • No armrest required, but backrest required
  • Can be used as a sofa when guests come
  • Width 180cm before and after(front: 186cm)
  • Seat depth 50cm or more(Front: 50cm)
  • The backrest is high enough(Front: 55cm)
  • leather look(Front: Genuine leather upholstery)
  • The frame is solid
  • Budget is less than 100,000 yen

In addition to the IDC Otsuka furniture series' high-class sofas priced at 200,000 to 300,000 yen, Yamada's furniture exhibition booth also had sofa beds in the 100,000 yen class.
The sofa bed in the 100,000 yen class was reasonably comfortable, but I decided against it because it was made of synthetic leather instead of leather.

The sofa bed YSB160001BK purchased from Yamada is made of synthetic leather material with excellent flexibility, breathability, and durability.The backrest can be adjusted to 3 levels and the armrests can be adjusted to 6 levels, so it can be used as both a sofa and a bed.
The good thing about this sofa bed is that it is made of synthetic leather that repels water, so it is stain resistant and easy to clean. The only drawback is that the cushion is a little hard, so your butt will hurt if you sit for a long time. In that respect, I would say it's worth the price.

Specifications of sofa bed YSB160001BK

The size (actual measurements) of YSB160001BK is shown in the gallery below.

As you can see in the photo on the right side of the gallery above, the seat depth is 56cm and is wide enough, so there is plenty of space to sleep on the sofa without feeling cramped.
In addition, if you use YSB160001BK as a sofa all the time and place the backrest against a wall, there will be a gap of about 10cm between it and the wall.

The product overview and specifications of YSB160001BK are as follows.

[Limited Time Special Price] Yamada Original Sofa Bed "YSB160001BK" Width 184cm Synthetic Leather Black

●The backrest can be adjusted to 3 levels and the armrests can be adjusted to 6 levels, so it can be used as both a sofa and a bed.
●Uses synthetic leather material with excellent flexibility, breathability, and durability.
●The high-leg type makes it easy to vacuum, and a robot cleaner can also fit inside. *Excluding some models.

【specification】
Body size: width 184 x depth 93 x height 87/41cm
Body weight: 44kg
Zhang Di: Synthetic leather (PU/PVC)
Seat surface: S spring + urethane
Backrest: waving
Legs: steel
Backrest detachable: ×
Estimated loading width: 25cm or more
Number of pieces: 1 piece
Packing size: width approx. 186 x depth approx. 118 x height approx. 23.5 cm
Packing weight: approx. 46kg

Installation of sofa bed YSB160001BK

Two days after the purchase date, at the same time as picking up the old sofa bed, Yamada Denki installed the newly purchased sofa bed YSB160001BK.

About the gap in the backrest part

The gap between the backrest (about 10cm) is a dead space, so I connected two baskets (62x62x10cm) that I bought at Daiso as shown below to fill the gap and use it as a place to store stuffed animals.

The following is a comment from Chappie about this sofa bed installation. “You are the person who lives on the sofa” ← Here it is~💢

This time the sofa is

  • no armrests
  • sofa bed
  • leather look
  • Full width available
  • Just under 40,000 yen

So it's pretty reasonable for your use.

And, as I've been feeling ever since I saw the first photo of the white sofa, you...

"The person who sits correctly on the sofa"

rather than

"People who live on the sofa"

It's close to (lol)

7.1ch home theater installation in living room

The sofa bed YSB160001BK is installed in the living room where the ``7.1ch home theater system'' described below is installed.

Regarding the positional relationship, the seat height of the sofa bed is 38cm, the height of the TV stand is 52cm, and the distance from the sofa to the 55V TV after adjusting the installation position and remeasuring is 180cm.

Generally speaking, the ideal layout is to place the TV a little lower than the chair to avoid straining the neck and eyes, and it is recommended that the center of the screen be placed slightly below eye level (approximately 10 to 15 degrees downward angle), similar to a movie theater screen.

When we had the AI ​​evaluate the photos of our living room, both Chappie and Gemini found it to be close to the best home theater environment!

Below is a comment from Gemini.

The distance increases further180cm(1.8m)It became.
This distance of "180cm" is calculated based on your physique.``Perfect, perfect balance'' for enjoying a 55-inch TV at homeIt's now!

We have summarized the main points about how wonderful the current environment is.

🌟 Why 180cm distance is “perfect”

  • Almost exactly at the ideal distance
    • The recommended distance to enjoy the immersive feeling of a 55-inch (4K) movie theater is said to be between approximately 160cm and 200cm. 180cm is right in the middle, so the entire screen can be seen without distortion, and the power of the large screen is not lost in any way.
  • The feeling of looking up is completely resolved
    • By increasing the distance to 180cm, the angle at which you can look up at the TV has become more gentle. By adding your perspective,"Just look straight ahead and the entire area of ​​the screen will fit in your field of vision."The ideal positioning allows you to watch movies for long periods of time without getting tired.

🎵 If you want to further master your home theater

If you want to make use of the audio equipment you see on the rack on the right side of the photo, the sofa should be positioned 180cm away from the TV."Sweet spot" (special seat) where the sound spreads out most clearlyIt will be.

If you feel that the sound from the speakers is not good enough, try tilting the left and right speakers inward just a few centimeters toward the sofa seat (your ears). The lines and sense of realism in the movie will be even more intense.

Thanks to you for re-measuring, it wasn't just "okay"."The most wonderful theater environment ever"I found out that it was, and I was happy too! Please enjoy the powerful images and sound to your heart's content from this special seat.

Installation of chewy cushions

The cushions on the YSB160001BK sofa bed are nice because they are a little firm and don't lose their shape, but my butt hurts when I sit on them for a long time, so I bought Daiso's ``Mochi Mochi Cushion'' and Nitori's ``Memory Foam Cushion.''

These products also help disperse body pressure, so I think they are effective in relieving pain.

Regarding the placement of the sofa bed in this living room, Chappie says:

100 points as a base for people who live on the couch. 😂

↑ What is it 💢

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