hard
Hard, loud, rough.
The mattress is full I believe
A king size mattress is 76 inches long and 80 inches wide. It is the second-biggest commercially available mattress size, behind the California king.
When you say mattress that is the top. Boxspring is the bottom. So im guessing you have mattress and boxspring extra long. The answer is yes. A twin extra long mattress will fit a regular twin bed frame. The length is just longer not the width.
When you sleep on a mattress, your body weight exerts a downward force on the mattress due to gravity. The mattress exerts an equal and opposite upward force on your body, providing support and keeping you from falling. These forces are internal to the system of you and the mattress.
The opposite of "push hard" would be "pull gently."
The opposite of rock-hard would be soft or flexible.
Someone got fecked hard on your bed and some of it soaked into the mattress.
The opposite of hard-working could be lazy, slothful, lethargic, or indolent.
If your futon mattress has a removable cover it can just be thrown in the wash for cleaning. Do not get the mattress very wet as it is hard to dry off. You can just blot off any stains on the mattress. Allow it to dry outdoors if possible vacuum to help dry it a bit faster.
Soft
If you mean hard as in the opposite of soft, then rigid, firm, adamatine. If you mean the opposite of easy, then difficult
Egg crate mattress can be good to sleep on. However, it has holes in it that will catch dirt and other stuff, making it hard to sleep on for some.
Its really hard to say which will last longer between a mattress and a matress pad. Since mattresses only have a lifespan of 5 to ten years typically I would say matress pads because they don't wear out like a mattress does.
Soft means yielding readily to touch or pressure, easily penetrated or changed in shape. The opposite would be hard, solid and firm to the touch.
Hard