1998-2003 Coconut Palm Mattress: With the improvement of production technology, this mattress began to use mechanized processing technology. Use machine to wrap edge steel, machine to wrap edge, sew, etc. The use of the second generation chemical fiber fabric and the introduction of natural coconut palm extend the service life of the mattress, and add a centimeter thick sponge to increase the softness of the mattress.

2003-2008 Independent Bag Spring Mattress: The trend of global economic integration has brought unprecedented opportunities to the traditional mattress industry. This mattress is made of new environmental friendly materials such as independently packaged springs, white cotton felt, moisture absorbent nonwoven fabrics, high-density sponges, and high-grade brocade fabrics, using advanced production equipment at home and abroad. Compared to previous generations of mattresses, it has taken a significant step forward in terms of technology and materials.

2008-2013 Natural Latex Mattress: This mattress is a Donble  mattress, mainly sold in Europe and the United States. Using environmentally friendly cotton, 3D software materials, far infrared resin cotton, barrier technology, and adding natural latex, it has ultra-high elasticity. It is the product of modern people's pursuit of high-quality and healthy sleep. However, its price is far higher than its actual value and is not suitable for mass consumption.

2008-2013 Skin-friendly and Healthy Mattress: This mattress adopts high-end knitted fabric, inheriting the production process of Donble Mattress for more than twenty years, with a delicate touch and environmentally friendly and healthy fabric. The independent bagged spring has better elasticity, and the edge reinforcement design has strong support around the mattress. The mattress is durable and not easy to deform. It is specially developed for consumers who like soft mattresses. It has a strong sense of comfort and a soft fit, meeting your needs for healthy and comfortable sleep.

2008-2013 High tech environmental mattress: This mattress inherits the production process of Donble mattress for over 20 years, citing domestic and foreign high-tech. Bamboo charcoal fiber fabric is warm in winter and cool in summer, which can absorb harmful substances in the air. High tech materials such as 3D software materials, with moderate hardness and softness, can effectively release cervical pressure, form a humid and hot microcirculatory air layer, and create a dry and comfortable sleep environment. It is the mattress with the highest cost performance ratio that our company is currently selling.

2013-2018 High tech environmental mattress: Donble Mattress always adheres to the business philosophy of "honesty based, good but not expensive", and has developed a mattress with moderate hardness and softness that conforms to the sleeping habits of Chinese people. This mattress is made of aloe vera fabric, 2.35 wire diameter high carbon manganese steel spring bed net and other selected accessories. And use 4 cm thick health cotton instead of too soft latex to make the entire mattress flat, open, and easy to roll over; The texture is relatively hard, which can protect the lumbar spine, and is more suitable for Oriental physique.