Hi Annabel,

The Vi-Spring Heligan is made exclusively for John Lewis and having looked at the description, whilst it does detail what it contains, it is not specific by way of GSM (grams per square metre) in respect of the upholstery layers.

This makes any comparison impossible.

Having said that, our Artisan Bespoke 004 contains all of the fillings detailed in the Heligan description and the full details of the levels of those fillings are detailed on our site.

For your particular body weight I would agree that you need a soft mattress-guide/" title="spring">spring tension and would suggest that after viewing the details of this mattress, you call our office for more specific advice as to the suitability.

I hope that this helps, kind regards Mike.