Pregnant women can sleep on foam mattresses. Pregnant women need to consume a lot of physical strength, enough good sleep helps pregnant women to recover good physical strength, maintain a good mood, it is also conducive to the development of the fetus in the womb. In the choice of mattress for pregnant women to choose a breathable, soft and hard moderate mattress, is conducive to the relaxation of the lumbar muscles, will not cause lumbar pain and lumbago. It is not recommended to choose too hard cushion, too soft cushion, also should not sleep spring mattress, etc., easy to aggravate back pain during pregnancy discomfort symptoms. Of course, the overall choice of mattresses to the comfort of pregnant women to experience the sense of the main, as long as pregnant women can sleep comfortably. In late pregnancy to sleep relatively hard some of the bed is conducive to the maintenance of the physiological curvature of the spine, reduce the symptoms of lumbago, so the sponge sheets should not be too thick or too soft.