Unfortunately, as the description of the Dreams products is limited in terms of construction and upholstery,
I am unable to recommend a suitable replacement from their ranges. When looking to buy a new mattress there are certain questions you should ask yourself to help with your decision, please read the following article here
Having said that, if you have experienced a similar problem with a totally different mattress (memory foam), it could well be a problem associated with the base upon which the mattress is sat.
Secondly, for your body weights you ought to be looking at a soft (for you) medium (your husband) split in the tension of the mattress, anything firmer than soft for you is likely to aggravate any back issue you have.
|Upto 8 Stone / 50kg||Soft
|8-16 Stone / 50-101kg||Medium
|16 Stone / 101kg Upwards||Firm
I trust that this helps, If you require any further assistance please call the office on 0161 437 4419.
Kind Regards Gary.