Hi Dave,
 
Thank you for your question and your kind words. We do try to ensure that all our customers get as good a night's sleep as they can. Due to the nature of illnesses, not all symptoms of ME/CFS (Myalgic Encephalomyelitis or Chronic Fatigue Syndrome) are the same for each sufferer and there is not one mattress fits all. Some sufferers who spend more than an average amount of time in bed require a medical bed that is designed for this type of use.
 
The correct spring tension is essential to get the correct level of support. I would not recommend the orthopedic springs for your friend given his light body weight. You need to be at least 20 stone to activate the extra firm springs. At his height and weight, we would pair him with the medium spring tension.
 

 
The Hypnos Orthocare Supreme mattress has the firmer springs which your friend doesn't activate but it has a softer upholstery which he will be sinking into too much. This can raise the ankles and the neck of a back sleeper which can cause lower back and neck pain. Unfortunately, a lot of showrooms describe the 'comfort' of the mattress as depending on the spring tension and not the upholstery layers on top of the springs and it is these fibres that determine how the mattress feels and not the spring tension.
 

 
Given that he is a back sleeper he does require a firmer feel in the upholstery layers but not too firm that his hips and shoulders don't sink in at all. If the comfort layers are too firm there is no support for the lower back. I would recommend the firmer medium upholstery of the Artisan 1500
 

 
I hope this helps and if you would like any further information please do not hesitate to contact the office on 0161 437 4419.
 
Kind Regards
Michaela