Twin Size Mattress, Sersper 12 Inch Memory Foam and Pocket Spring Hybrid Mattress in a Box, Pillow Top with Breathable Soft Knitted Fabric Cover, Medium Firm

Medium Comfortable Firm Feeling-Pressure Relieving-Sersper Twin Mattress is designed for all sleepers. Memory foam + pocketed innerspring hybrid construction reaches a balance between firmness and softness. Thanks to 5 zone 392 pocketed innerspring mattress exclusive design, the 5 zone distribution of pocketed innerspring （2.0/1.8/2.0/1.8/2.0mm) which delivers targeted, extra firm support for your neck, shoulders, back and hips to reduce your body pressure and pain. Super Breathable Fabrics + THREE layers Memory Foam- Excellent Quality-The knitted top cover made with Fiberglass-free and skin-friendly fabrics adapt to the environment dispersing body heat as well as releasing moisture, keep the mattress surface at the ideal sleeping temperatur. Stay cool and comfy all night！Designed with THREE layers all-foam system, support pressure relieving, including 0.8" cooler memory foam, 0.4" comfortable memory foam layer, and 0.4" high density base support foam for optimal pressure relief. 5-Zone Motion Isolation-392 POCKETED SPRINGS-Sersper Twin mattress made from comfort memory foam + 392 wrapped pocketed springs which work independently to provide localized bounce in different zones, no interference between springs. It also reinforces the edge support and isolates motion transfer to a significant extent.The premium tempered steel coils makes the mattress bouncy yet supportive, adapts to the size and weight of any body.Twin mattress supports a greatest weight of 400 lbs. Mattress In a Box & 48 Hours Expand Fastly-Sersper memory foam and spring hybrid mattress is compressed, rolled and shipped in a box for ultimate convenient delivery. Twin mattress dimensions: 75” L x 39” W x 10” H. Shipping Dimensions: 42.91” L x 11.81” W x 11.81” H. For a better sleeping experience, please wait at least 48 hours for the mattress to fully expand. Certipur Us Certified & 100-Night Trial-We are a manufacturer specializing in the production and processing of mattresses. Our Highest quality foam has been certified by CertiPUR-US for durability, performance, and content. Each Sersper mattress comes with a RISK-FREE 100-night trial and 10-year warranty. If there is any question, please don't hesitate to contact Sersper customer support team. We will reply to you within 24 hours and help you to solve the issues.