■ We also carefully crafted the mattress As your child grows, you can add more mattresses. We have developed a mattress that is perfectly suited to children! Choice of mattresses ■Thin and lightweight bonnell coil mattress Mesh design for excellent breathability! It's lightweight, so it's easy to carry! This is a thin and lightweight bonnell mattress that is perfect for bunk beds. ■ Thin and lightweight pocket coil mattress Mesh design for excellent breathability! It's lightweight, so it's easy to carry! It is foldable, so it can be stored compactly. Pocket coils are independent coils that fit snugly against the body. It sinks in tightly and hugs your body. There is little interference from the shaking to the person next to you, It's also perfect for parents and children to sleep together. ■Thin, antibacterial, domestically produced pocket coil mattress It is foldable, so it can be stored compactly. A domestically produced pocket coil mattress built to strict domestic standards.