Novilla Foam Mattress - A COZY HOME MADE SIMPLE! Why choose Novilla full foam mattress?Flippable & Double-Sided Sleep - Buy one, get two sleep experiences, meet different sleeping positions.Square Curve Provide Double Air Zone - Increase air to flow space, prevents heat build-up, suitable for hot sleepers.Ideal for side sleepers & back sleepers - Zoned ergonomic design helps eliminate pressure points, balances support from head to toe, and offers quality sleep.CertiPUR-US Certified - The foam infused is CertiPUR-US certified, it is safe and provides you and your family a healthy sleep.100-night Sleep Trial - .What is inside the box?1x Novilla 6 inch full foam mattress 1x Novilla manual card Warm reminder:A slight odor from the new mattress is harmless and will dissipate after a short time.Everyone has their view of firmness. We recommend giving your new Novilla mattress twin a chance to used to your sleep position within a few weeks, If you still can't sleep well, please contact us freely within 24 hours, we are always on standby to assist you.Please Give your Novilla mattress 72 hours at least to fully expand to its original shape.