Affordable Firm Mattress ： the queen firm mattress delivers stable, full-body support to keep your spine aligned. A smart choice under sleepers who prefer a firmer feel. Stronger Support - Reinforced coils around the sides increase firmness by 70%, reducing roll-off and adding usable sleep space for couples. The stronger edge also means longer-lasting performance. Enhanced Motion Isolation - Over 2000 individually wrapped coils reduce motion transfer by 85%, so you won't feel every toss or turn. Sleep undisturbed - even if your partner or pet moves during the night. Breathable Hybrid Mattress - Open-coil technology allows up to 10X more airflow than all-foam designs. The ventilated structure helps maintain steady airflow for a more comfortable sleep environment. Certified Materials - Our 11 inch hybrid mattress meets CertiPUR-US, ensuring it's made without fiberglass or harmful substances. To facilitate transportation, the mattress is packaged using high-intensity vacuum compression and folding. As a result, there may be some compression or folding marks on the mattress – these are normal and may not fully disappear within 72 hours of unpacking. Such marks will only fade completely after a period of use. If you are sensitive to compression marks, please make your purchase carefully. Thank you for your understanding! Please double-check the mattress details before placing your order to ensure it is the one you intended. If it is not the mattress you ordered, you can refuse to sign for it upon delivery. We hope you have a pleasant experience with our mattress, and may everyone enjoy a happy life, joyful holidays, and daily happiness!