‘My advice would be to avoid' – sleep experts warn this is the one type of mattress you shouldn't buy

A bedroom with a large window overlooking an apartment building.

There's a lot to think about when buying a mattress. Memory foam or hybrid, with a sleep trial or without, all can have an impact on how well you sleep on your new bed.

But if you want to avoid any costly mattress buying mistakes, experts warn that there is one type of mattress you should never buy.