Coolvie Twin XL Mattress 12 Inch, Medium Firm XL Twin Mattress in a Box, Hybrid Individual Pocket Springs with Memory Foam, Cool

12 Inch Twin Xl Mattress Hybrid Memory Foam And Spring Mattress Medium Feel, Pocket Spring For Motion Isolation &Targeted Supportmettress Features: Cooling And Motion Isolation: The Coil System Is 20 Times More Breathable, Keeping You Comfortably Cool. The Sleeping Mattress Isolates Motion For A Ideal Undisturbed Sleep Even If Your Partner Moves At Night. Comfortable And Support: Memory Foam And Pocket Springs Design Give You Medium Feeling, Keeping Body Properly Aligned, Pressure Relief & Heat Dissipation. Size Information: Twin : 39 W X75 L X 12 H Twin Xl: 39 W X80 L X 12 H Full: 54 W X 75 L X 12 H Queen: 60 W X 80 L X 12 Hhow To Set Up The Mattress: - Step 1: Open The Box. - Step 2: Keeping The Mattress Wrapped, Slide It Onto The Surface Of Your Bed Frame. - Step 3: Proceed With Caution! Using The Special Unpacker Inside With The Mattress, Carefully Cut The Plastic, Being Careful Not To Cut Into The Foam Of Your Mattress. Please Keep Distance And Enough Room To The Mattress When Opening, As It May Have A Risk To Smack People When Expanding. - Step 4: Unroll Your Mattress. - Step 5: Allow 48-72 Hours For The Mattress To Regain Its Full Shape.Friendly Reminders: 1.Whatever It Is Foam Mattress Or Hybrid Mattress ,Your Body Needs Up To 4 Week S Time To Get Used To A New Mattress. 2.Due To The Different Weight,Height, And Sleep Positions Of Different People, The Firmness Feeling May Be Different.Br> 3.Rotate The Mattress Regularly To Extend The Durability Of The Mattress.