sry no awnswe
Serta
Some Polyester filled, some down filled.
You can use a standard box frame mattress to be honest simply because the feather bed is added to the top of the mattress.
Yes
They use the Trinity mattress from InnoMax - America's Finest Sleep Products.
Depending on the type of mattress pad you use, they can be hypoallergenic, avoid stains on the mattress, or simply for comfort.
It's not a spring mattress but it certainly is the softest mattress. If you use my refferal code you can get $200 off luxury mattress from $699 and up. rb.gy/ogimdb
A kingsize mattress is 40cm (16 inches) wider than a queensize mattress, so probably not.
sealy posturpedic
None. Usually a mattress is made of fabric and springs
When your mattress grows too old to use, the upcoming purchase can be daunting, and sometimes you may try to prolong its inevitable discarding. Using mattress toppers or a protector is good to use to prolong your mattress life, but not when it's nearing its end. If your old mattress is already showing signs of aging and reducing your sleep quality, a mattress topper won't work a miracle. However, a mattress topper is an excellent mattress accessory upgrade when installed on a new mattress or a while after purchase. You may have the best mattress, but if it has lost its capabilities over time, there's not much you can do except discard it.