COMFORTABLE SUPPORT: The Hybrid mattress utilizes a unique combination of individually pocketed springs and memory foam, which provide targeted support according to body curves, ensuring that your weight is evenly distributed from head to toe. This ergonomic design is very humanized for your body and can greatly improve the quality of sleep. MOTION ISOLATION: This Hybrid mattress consists of high performance pocket springs and high density foam, which can effectively absorb the noise and vibration generated by turning over during sleep, without disturbing your companions, allowing you to sleep with peace of mind and be refreshed the next day. CERTIFIED SAFE MATERIAL: The colchones is made of high density material that is very comfortable and breathable, which drains out steamy sweat from your contact surface with the mattress and keeps you dry all night long. Your health is our top priority, so this queen size mattress contains no fiberglass or other harmful substances. MATTRESS BED IN A BOX: The Hybrid mattress will be compressed, vacuum sealed and neatly rolled in a box before shipping. Not only is it easy to install, it is also smaller and more portable. This mattress fits all bed frames; you just need to measure the size. (Warm Tip: Package does not include bed frame)