Hi Gail,
 
The consideration with adjustable beds is that the mattress you choose to go with it must have enough flex to accommodate the moving slats or base panels beneath it. Our Fusion 5 and Fusion 6 are ideal for this and we have sold many of these for people adjustable beds. If you choose a really heavy thick pocket sprung mattress it will struggle to articulate enough and may even damage the adjustable bed frame.
 
For medium support please look at the Fusion 5 model. The weights of this mattress are listed here, we would advise you check the Dunlopillo base is capable of supporting this weight.
 
If you have any further questions please get back in touch Gail.
 
All the best