Longfeng mattress is 8 cm, and its edge thickness is 10 cm. According to relevant data, the thickness required by Longfeng Mattress Factory is 8 cm, and that required by Zhiyuan Mattress Factory is 10 cm. Longfeng mattress is a kind of traditional mattress, which is mostly used for classical decoration and is famous for its unique curved head and feet. It is usually made of soft materials such as cotton, latex or feathers, and has the characteristics of comfort and warmth. Zhiyuan mattress is a high-quality modern style mattress.