Cant comment onVisco elastic mattress but we have been sleeping soundly on our bed Tempur (king size) for the last few months , its great if i get up in the night to go to the bathroom Mrs Mikeyny does not feel me getting up .
you dont feel the other person moving around . it feels warm as the mattress is heat and pressure sensitive no back aches ,
We have the tempur pedic pillows to go with it and we missed them while they were being shipped here and we were using ordinary pillows , so while not scientific they did make a difference .
The mattress was expensive but worth it , we bought it in the US , also its guarenteed for 30 years
the foam is really heavy so if its a king you are looking at you will need 4 strong lads to get it up the stairs ,the smell did go away after a few days
Mrs mikeyny just said that a smaller mattress would do as you dont really move around as much , Queen would have done us as good as a king .
you live and learn
I seem to recall a 60 day free trial , is it available here or is it the UK only
good luck
mikeyny