eli5 Why Mattresses need frames and box springs for (stability) when the floor is a fully flat surface?

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I haven’t found anything scientific about this, but box springs are wooden slats sideways for even distribution of weight, but wouldn’t the floor be better? Does it damage the bed or affect sleep?

Or are box springs a solution to the manufactured problem of raising beds on bed frames?

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22 Answers

Anonymous 0 Comments

People generate a surprising amount of moisture in bed. If the bottom of the mattress is on an impermeable surface like the floor then the moisture will build up there and cause mildew on the mattress. You need ventilation under a bed.

Anonymous 0 Comments

Because women will gasp and run if they walk into your room and there is a mattress in the floor.

Anonymous 0 Comments

They’re about having a comfortable entry level rather than having to stoop down; they’re about having additional shock absorption to reduce wear and tear on mattress; they’re about airflow through mattress for comfort when sleeping, keeping it from smelling/letting sweat dry more quickly, letting dust settle through

Anonymous 0 Comments

You need to ventilate under a mattress, at least in a climate/room that is not dry.

In Japan people sleep on cotton mats on the floor, but they move the mat in the morning to get it out of the way and to air it.

There is also a comfort consideration with having high beds that are easy to get out of, especially in our sedentary western lifestyle where most people are quite stiff.

Anonymous 0 Comments

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Anonymous 0 Comments

Mattress and box spring straight on the floor for some reason feels harder than mattress and foundation placed on a frame. I honestly have no idea why other than the frame allows a bit of flexibility in everything perhaps ?

Anonymous 0 Comments

My Father was a trained upholsterer, and his apprentice jobs were rebuilding spring mattresses. He replaced bent springs, rehorse haired and re-ticked the top. He said that the beds with open spring sheets unser the main matress gave an aired, comfortable bed on which to sleep. Beds were rebuilt every ten years.

Anonymous 0 Comments

There’s many individual answers but mot a comprehensive one, so let’s combine them

1) Because it’s more comfortable to get in and out of (chair height rather than getting up from the floor)

2) The floor can be cold and transmit it into the mattress, plus you have cold drafts near the floor.

3) It would trap moisture and rot the mattress

4) You actually recover some useful volume for storage, otherwise it’s wasted spave all the way to the ceiling

Anonymous 0 Comments

You try standing up off the lowest point possible every morning when you’re 50 tell me how it feels lol

Anonymous 0 Comments

Because most people don’t want to sleep that close to the floor. The box is needed if you are using a bed frame, because the mattress isn’t rigid enough to put in the frame by itself.