Bedrooms are made for a specific purpose–facilitating sleep and rest. A bedroom’s environment should be conducive enough for a sufficient and sound nighttime sleep. To ensure that you’ll attain good sleep every night, you should keep your sleeping environment safe, comfortable, and inviting. While many people don’t pay much attention to their mattresses, it’s, in fact, a piece of essential sleeping equipment in your bedroom that can heavily affect your daily life. Advwin Mattress is your best choice. Feature: 【Not Hot in Summer & Not Stuffy in Winter】 The foam spring mattress made of high-quality and durable polyester material is circulated on all sides to ensure air circulation. Effectively absorb moisture and peculiar smell, inhibit the growth of bacteria for a long time, and maintain a cool and comfortable sleeping environment~ 【Do You Have These Troubles? 】 The mattress is too hard/too soft, and wake up with backaches. Advwin mattress fits the human body curve, softly reduces pressure, and effectively protects the health of the spine. It is an ideal choice for developing children, elderly people with osteoporosis, and sedentary office workers. Our mattresses are made of selected antibacterial and anti-mite fabrics, free of harmful chemicals, and provide a healthy sleeping environment for you! 【Not Easy to Deform】 The mattress is made of high-density fiber foam, which is not easy to deform, 14cm Bonnell spring, flexible rebound, and not easy to collapse, making comfort a matter of course! Note: Please allow up to 48 hours for the mattress to fully expand and for any potential odor to dissipate. Specifications Color: Grey/White Dimensions: King Size: 183 × 204 × 16 cm Material: polyester fabric+non-woven fabric+foam+steel Thickness: 16cm Spring height: 15cm Firmness: 6.0/ Medium Firm Wire thickness: 2.3mm