Hi Andrew.

Very good question.

We started looking at these models back in May and on the face of it the description and specification seemed to be quite impressive particularly when they are described as having "Comfort 7 - Indicates the number of comfort layers within each mattress".

I notice now that images are supplied with the product to show the actual make up of the mattress but at that time we had to email Next to question the term "Comfort 7" and following several chase up mails we got the following reply in September to explain the meaning of this term.

Layer 1 Super Soft Filling Layer 2 A Cotton/Wool/Polyester layer Layer 3 A mattress padding layer Layer 4 The spring unit Layer 5 A mattress padding layer Layer 6 A cotton/Wool/Polyester layer Layer 7 Super soft Filling As with most manufacturers / retailers, there is no indication of any associated weights / GSM given.

However, looking at the images we can assume that the main upholstery layer is 1200 GSM and topped off with what looks like 600gsm polyester.

The mattress padding layer is not evident within the image although I am going to assume again that this is reference to a spunbond insulating layer directly on the spring unit.

When we were looking at these models we used our Origins 1500 as the comparison based on price.

As you will see from our specification we have utilised a sheet of HD foam as the mattress padding layer which goes a great way to inhibit undue settlement of any upholstery layer applied on top of this.

Then 1250 gsm polyester in two differing densities is used and topped off with a 300gsm comfort layer of wool and silk.

In short, these two models are quite similar but I would (obviously) select our Origins 1500 as a better quality of overall build.

[Read more here] Hope this helps Andrew (sorry for delay in replying: Holiday ) John and Ryan.