Hi Jim, 
 
Thanks for your question. 
 
We don't have anything directly similar to the Hypnos Orthos Deluxe. These mattresses tend to be very firm.
 

 
Our closest comparison would be the Artisan Bespoke. This is a traditional pocket sprung mattress with natural fillings; Those natural fillings provide a cool sleep surface but longevity also comes into it as natural fillings last longer than synthetic fillings. 
 

 
The Bespoke is the firmest mattress within the top layers and this in turn means that there is no sink into that top layer at all. At your body weight you would be matched with a Medium spring tension to get the right level of support. The Bespoke is the model that we compare with the Vi-Spring Herald that can be found in stores such as Furniture Village, Harrods, House of Fraser or And So To Bed. 
 
As we are an online only retailer our mattresses can't be tested beforehand but the comparison model gives you something to gauge it off. This is also the main reason we offer our standard 60 day love it or return it guarantee. This is a no quibble policy meaning that if the mattress just isn't right for you you can return it for a full refund or utilise the one time exchange; We would never leave you with something that is unsuitable. 
 
I hope this has answered your questions fully but if you do have any further queries please don't hesitate to contact our office on 0161 437 4419. Our office is open Monday to Friday 8am to 8pm and Saturday and Sunday 10am to 4pm. 
 
Kind Regards, Lee.