Your sleeping position matters when it comes to choosing the right mattress firmness for you. Depending on whether you are a side, front or back sleeper, you will need the best spinal and back support that your mattress can give.
In general, side sleepers tend to benefit from soft to medium-firm double mattresses. Spring and pocket sprung mattresses are best for reducing pressure points from forming on your shoulders and hips, as well as keeping your spine aligned.
Back sleepers, on the other hand, require firmer mattresses for adequate back support. A double mattress that is too soft does not promote ideal spinal alignment and is likely to cause back pain.
A medium-firm to firm mattress will prevent front sleepers from arching their back to an awkward angle when sleeping.
Your weight will also come to play when choosing the best double mattress type. As a rule of thumb, the heavier you are the firmer the mattress should be.
Naturally, when buying a double mattress for a couple, you will need to consider both of your needs and weights. Pocket sprung mattresses with a high spring count are excellent for stopping movement from transferring from one side of the bed to the other. Memory foam mattresses are also a great choice if you need individualised support for each sleeper.