Used the main unit for about a month. The mat has been washed. Also convenient for travel! Color: Gray Brand: Happiness Baby Target User: Baby Product Dimensions: 40 cm length x 38 cm width x 15 cm height Material: 100% Polyester Included Components: Mattress 【Design for Safety】Our company conducts the following safety inspections at specialized institutions: ・Formaldehyde test ・Mattress hardness test. We use a mattress with moderate firmness. Compared to overly soft bedding, a firmer mattress reduces the risk of a baby sinking in. We have also conducted hardness tests at specialized institutions, making it easy to see the hardness value at a glance. *A firm futon is also recommended for the prevention of SIDS (Sudden Infant Death Syndrome). 【Mosquito Net & Japanese Instruction Manual Included】Our products come with a mosquito net for the baby's peaceful sleep. Many users of bed-in-beds are concerned about insect bites when traveling or outdoors. Based on these voices, we designed a mosquito net specifically for our bed-in-bed and include it. Please use it.