Hi Matthew,
 
Thank you for your question.
 
The Artisan Naturals Superking size mattress weighs about 70kg and is about 27cm deep.
 
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The Artisan Naturals mattress has an overall medium comfort from the top upholstery layers meaning that the mattress will feel neither too soft nor too firm.  However the springs within the mattress provide the support and that support is dictated by body weight.   If you have not taken advice from our small friendly team, it would be advisable to telephone the office on 0161 437 4419 in order for us to collate information from you with regard to weights, heights and preferred feel so that we can make sure that this mattress suits your requirements.
 
I hope this assists and look forward to speaking to you in due course.
 
Kind regards Julie