Twirest Double Mattress, Hybrid Memory Foam and Spring Mattress, Zonal Support, Decompression, Medium Firm, Soft and Breathable Cloth, Rolled-in-Box, 135x190x22cmInnovative Design: Twirest hybrid spring mattress adopts an upgraded 7 zone independent inner spring design to ensure that your weight is evenly distributed, and provides support, ensuring the night's sleep Breathable Mattress: Crafted with premium materials, our mattress provides a healthy sleep environment. The breathable and hypoallergenic properties ensure fresh air circulation, reducing allergens and creating a comfortable sanctuary for all night