This is great value for money, memory foam and springs is the way forwards. I researched this and memory foam on its own is too subjective as some people find it too hard and others too soft.
I have a bad back for a number of years, I've tried pocket sprung with 2000 springs which didn't work so then tried memory foam mattress which actually made my back worse as did not support but sunk in to my body shape as that is what foam alone does.
You get a balance with springs and memory foam with this mattress and resolves the issue of it being too firm or too soft, giving the added support needed for sufferers of back problems as well as a good nights sleep.
I recommend this mattress and its less than 15 percent of what i have paid before.said from 



A decent mattress is important enough when you don’t suffer from excruciating back pain, but when you do, it’s vital to get a mattress that’s both comfortable, and supportive.

Typically, a medium firm mattress is best for those who suffer from back pain. Why?  It’s firm enough to offer support for back and front sleepers, while offering a little cushion for those that sleep in their side.

Of course, as usual, there are a few things to consider when buying a new mattress. Not only do you want to make sure that the mattress has an appropriate level of firmness, but you’ll also want to take into consideration things like price, mattress size, and so on.

Whatever you’re looking for, there should be something for you on this list. Here are the best mattresses for those with back pain.

Vesgantti Multilayer Hybrid Mattress

Why it’s good for back pain:

Vesgantti mattresses are custom-built to your needs -- so if you have back-pain, then you can create a mattress that’s firm enough to support your back.

Special Features: the most advanced mattress, with ergonomic support and temperature regulation for the uninterrupted sleep you deserve.

Pressure's off,rest on--With the indulgent comfort of our exclusive advanced memory foam and the durable support of innovative innersprings,everything for a perfect night’s rest.

best mattress for bad back

Warranty: Like other mattress manufacturers, the Vesgantti mattress is covered by a 10 year warranty for manufacturer defects.

Price: The mattress starts at £109.99 for the 3FT mattress, and ranges up to £179.99  for a King mattress.