Any mattress that helps you sleep comfortably and wake up feeling refreshed, without pain and stiffness, is the best mattress for you. There is no single mattress that works for all people. You should choose the mattress that provides adequate support and meets your standards for comfort and allows you to get a good night's sleep.
Test before you buy
Lay down and try it. Your new bed needs to be just right for you, as a palm test or sitting on the edge will not be sufficient enough to judge this. Today's top quality mattress/foundation ensembles are built for superior comfort. Luxurious new cushioning materials and extra-soft surface treatments create a plusher, more comfortable feel.
Support
Look for firm support for correct spinal alignment. (Look for a straight line down the spine when laying on your side and a natural curve when laying on your back). A mattress should mould to your body's shape supporting your waist and lower back.
Firmness
Choose a mattress that isn't too soft or too hard for your individual needs-If you predominantly sleep on either your stomach, side or back you need the right choice. If a bed is too firm you will experience pressure points reducing blood circulation causing you to toss and turn, losing a good night's sleep. Orthopaedic experts recommend go for a firm mattress but not so hard as to block off circulation or cause shoulder and hip pain.
Space
Cramped quarters can turn sleeping into a nightly wrestling match. A healthy sleeper moves anywhere from 40-60 times a night, including some dozen full body turns. You need freedom of motion while you sleep and to help you relax while getting to sleep. If you sleep with a partner, be sure to select queen or king size. Both are not only wider, but several inches longer than the standard "double" (full size), which offers each sleeper only as much space as a baby in a crib.
Remember the SLEEP Test when you are checking out new mattresses.