JERFIT 8 Inch Twin XL Cooling Gel Memory Foam Mattress, Medium Firm Mattress with Supportive Layers Breathable Cover, CertiPUR-US Certified, Bed-in-a-Box

JERFIT PCM Cooling Cover actively regulates temperature by absorbing and releasing excess body heat for a consistently cool sleep surface. Gel-infused memory foam layer contours to your body, alleviating pressure points while effectively dissipating heat. Responsive transition foam adapts to your movements, providing balanced support and reducing motion transfer. High-density base foam offers durable foundational support, ensuring long-term mattress integrity and stability. CertiPUR-US certified foam is independently verified for performance, durability, and content, free from harmful chemicals. Medium-firm feel delivers optimal spinal alignment and supportive comfort for a wide range of sleep preferences. Compressed and shipped in a convenient box, making transport and setup through narrow spaces effortless. Quick expansion process allows the mattress to reach its full 8-inch profile and be ready for use within 24-72 hours. All-foam, no-spring design minimizes noise and provides consistent, motion-isolating support throughout the night.