Simmons Beautyrest Premium Executive Semi-Double

Purchased in April 2018 from an authorized retailer for ￥232,200, this mattress has been used without any particular issues until now. I've decided to switch to a different mattress that has caught my interest, but I believe this one is still in excellent condition for comfortable use, which is why I'm listing it.

I always used a thick mattress pad and sheets, so the surface of the mattress is free of stains and dirt. There are no squeaks or sagging, and the overall condition is good. The 7.5-inch coils, larger than standard, seem to be a key selling point.

When I discussed purchasing a new mattress with the store, they mentioned that Simmons mattresses are durable and typically last 15 years. Additionally, my physique (170cm, 59kg) means I don't put excessive strain on the mattress.
Based on this, I estimate it can still be used for another 7-8 years.
No pets, no smoking.
Please note that any items surrounding the mattress in the attached photos have been digitally removed.

My new mattress is scheduled to arrive on July 18th, so if a buyer is not found, this item will be disposed of on the same day. Therefore, those considering a purchase, please do so by July 16th.
Due to its weight and size, it is difficult to move out of my home, so please arrange for shipping via Tanomeru-bin (a service for shipping large items).
While I believe the condition is good, please consider this as a used item and understand that I cannot accept complaints or returns for this reason.