An air-bag-lifting sleep pillow structure, comprising: a posture-sensing and commanding device for installation on a user's body, which performs detection of the body's sleep posture, and generates an electronic signal according to a result of the detection; and a sleep pillow, which contains therein a height control unit for receiving the electronic signal from the posture-sensing and commanding device and modulating the sleep pillow in height, the height control unit comprises an air pump, which is connected to a muffling member, which is connected to a check valve, which is connected to a vent valve, which is communicated with one or more lifting devices, each lifting device comprising an air bag, which is of a substantially vertical bellows-like structure, and is communicated with the air pump, characterized in that the air bag is sandwiched between a base and an upper seat, and the air bag is sleeved by a lower sleeve at its bottom; the lower sleeve having atop an upper outer retaining ring; the lower sleeve being assembled to a first sleeve, a second sleeve, and an upper sleeve in sequence; the first sleeve having its bottom provided with a first lower inner retaining ring and a first lower outer retaining ring, and having its top provided with a first upper outer retaining ring; the second sleeve having its bottom provided with a second lower inner retaining ring, and having its top provided with a second upper outer retaining ring; the upper sleeve having its bottom provided with a lower inner retaining ring; the upper outer retaining ring and the first lower inner retaining ring retaining each other, the first upper outer retaining ring and the second lower inner retaining ring retaining each other, and the second upper outer retaining ring and the lower inner retaining ring retaining each other. a posture-sensing and commanding device for installation on a user's body, which performs detection of the body's sleep posture, and generates an electronic signal according to a result of the detection; and a sleep pillow, which contains therein a height control unit for receiving the electronic signal from the posture-sensing and commanding device and modulating the sleep pillow in height, the height control unit comprises an air pump, which is connected to a muffling member, which is connected to a check valve, which is connected to a vent valve, which is communicated with one or more lifting devices, each lifting device comprising an air bag, which is of a substantially vertical bellows-like structure, and is communicated with the air pump, characterized in that the air bag is sandwiched between a base and an upper seat, and the air bag is sleeved by a lower sleeve at its bottom; the lower sleeve having atop an upper outer retaining ring; the lower sleeve being assembled to a first sleeve, a second sleeve, and an upper sleeve in sequence; the first sleeve having its bottom provided with a first lower inner retaining ring and a first lower outer retaining ring, and having its top provided with a first upper outer retaining ring; the second sleeve having its bottom provided with a second lower inner retaining ring, and having its top provided with a second upper outer retaining ring; the upper sleeve having its bottom provided with a lower inner retaining ring; the upper outer retaining ring and the first lower inner retaining ring retaining each other, the first upper outer retaining ring and the second lower inner retaining ring retaining each other, and the second upper outer retaining ring and the lower inner retaining ring retaining each other.