Highlights Before first use, please lay the bed mattress flat in a ventilated area for 48-72 hours until it is fully expanded. Low temperatures may need more time.The mattress features lavender gel memory foam with a light, soothing scent that helps relieve pressure and promotes restful sleep. It not only absorbs moisture but also relieves your nervousness, allowing you to sleep comfortably and peacefully.The hybrid mattress's pocketed coil construction can reduce noise when moving and isolate movement, effectively avoiding movement interference between partners and ensuring your sleep quality. Reinforced springs around the edge prevent that slipping sensation when sitting or sleeping near the sides.The comfort layer is made of wave sponge and is fiberglass-, increasing airflow and reducing heat buildup while contouring gently to your body. The mattress is moderately firm and is designed for various sleeping positions, making it i for all sleep types. Lavender memory foam mattresses have not only the CertiPUR-US certificate (which measures odor, material, performance, and durability) but also rigorous certification from OEKO-TEX and fire testing. The height of this mattress is 12 inches, there are 4 different sizes: The twin size mattress: 75 x 39 x 12 inches, 47.9 poundsThe full size mattress: 75 x 54 x 12 inches, 64.79 pounds The queen size mattress: 80 x 60 x 12 inches, 75.4 pounds The king size mattress: 80 x 76 x 12 inches, 92.07 pounds Size Twin, Full, Queen, King Product Dimensions The Twin Size Mattress: 75"L x 39"W x 12"ThThe Full Size Mattress: 75"L x 54"W x 12"ThThe Queen Size Mattress: 80"L x 60"W x 12"ThThe king SizeMattress: 80"L x 76"W x 12"Th Item Weight The Twin Size Mattress: 47.9 poundsThe Full Size Mattress: 64.79 poundsThe Queen Size Mattress: 75.4 poundsThe king SizeMattress: 92.07 pounds Color Purple Fill Material Memory Foam Construction Type Pocket Spring Item Firmness Description Medium Firm Additional Features Durable, Pressure Relief, Fire Retardant, Breathable, Low Motion Transfer Age Range All