A pregnancy pillow is a specially designed cushion that provides support and comfort to expectant mothers. It helps alleviate discomfort in the back, hips, and abdomen, which can be common during pregnancy. These pillows come in various shapes and sizes, allowing women to find the best fit for their sleeping or resting positions. Many pregnancy pillows are shaped like a U or C, offering support on both sides of the body. They can also be used for nursing after the baby is born, making them a versatile addition to maternity essentials. Overall, a pregnancy pillow can enhance sleep quality and promote better posture during pregnancy.