Mis-sold Memory Foam Topper

fthl

Actually mattresses and toppers come under the items that 'can not normally be returned' once the hygiene seal is removed. This is due to possible contamination from body fluids, just the same as items like underwear. However it could be returned as an item that is not as described.

I disagree - they can be returned. As can underwear, trousers, shirts etc. They can not just be easily re-sold. the 'cannot be returned' refers to items that cannot physically be returned. Reselling is irrelevant.

neilmcl

PTurner wrote: »

Hello all!

I just bought a new memory foam topper for my bed.

It was advertised and sold to me as being of 85kg/m3 density.

However, when it arrived and I weighed it (after removing the packaging), it turned out to be only 68.5kg/m3 density (you can tell just from touch that it's lower density than stated).

Surely its weight and density are two completely different things. Can you really measure the foam density by weighing the mattress/mattress topper, I'm not so sure. Please tell us how you measured the density?

PTurner_2

neilmcl wrote: »

Surely its weight and density are two completely different things. Can you really measure the foam density by weighing the mattress/mattress topper, I'm not so sure. Please tell us how you measured the density?

Erm, density is just mass divided by volume mate. No big secret

neilmcl

PTurner wrote: »

Erm, density is just mass divided by volume mate. No big secret

Sorry mate, but that doesn't tell you whether the mattress topper was made with 85kg/m3 density memory foam does it. Are you going to explain how you measured the volume of just the memory foam?

PTurner_2

neilmcl wrote: »

Sorry mate, but that doesn't tell you whether the mattress topper was made with 85kg/m3 density memory foam does it. Are you going to explain how you measured the volume of just the memory foam?

Of course it does. Calculate the volume of an object, calculate its mass, and what you have it its mass per amount of volume. In this instance 68.5kg of 'solid' per every cubic metre of foam, as opposed to what should have been 85kg per cubic metre. There's nothing else to calculate.

bifold

I think I should point out that the weight of foam is no real marker of its quality,some foams in the far east are bulked out with talc or chalk dust which increases weight.A lot of far eastern foams dont meet our fire regs.
The foam made for the uk markets have double the normal foam chemicals added with the fire retadent elements to meet uk fire regs,which is why a proper quality uk market memory foam topper is more expensive.
You can have a very dense foam that is soft,and a much less dense foam very hard.
I have a 5 zone profiled memory foam topper on one of the beds at home,made by Carpenters,and its one of the best purchases I have made.

Tim_Deegan

neilmcl wrote: »

Sorry mate, but that doesn't tell you whether the mattress topper was made with 85kg/m3 density memory foam does it. Are you going to explain how you measured the volume of just the memory foam?

All you have to do to calculate the volume is length x width x depth. Then 85kg per m3 memory foam should weigh 85kg per m3.

neilmcl

Tim_Deegan wrote: »

All you have to do to calculate the volume is length x width x depth. Then 85kg per m3 memory foam should weigh 85kg per m3.

I'm aware how to calculate volume, I wasn't aware that the topper was just memory foam, nothing else. If that's the case then fair enough.

PTurner_2

Tim_Deegan wrote: »

What is very important (probably more important) is the mattress you have under the memory foam.

Regards
Tim

Tim, thanks for your help. I have a 4 inch mattress made entirely of Reflex 40 foam underneath. In your opinion would something else be better?

Tim_Deegan

PTurner wrote: »

Tim, thanks for your help. I have a 4 inch mattress made entirely of Reflex 40 foam underneath. In your opinion would something else be better?

Absolutely. Personally I hate reflex foam, which was always regarded as hot and sweaty, cheap and nasty, when used in mattresses. Then Tempur started putting a layer of memory foam on top of it, and tried to make out that it was something wonderful.

The problem with reflex foam is that it is constructed from loads of bubbles. In time these bubbles start to burst, and the reflex foam starts to soften and break down. It was more likely the reflex foam in your mattress that was causing the problems, rather than your previous topper. This is because memory foam is open celled in construction, and there are no bubbles to burst.

If I were you I would go for a mattress that contains springs. And if you go for one with the memory foam built in, then this works better.