【Motion Isolation for a Peaceful Undisturbed Sleep】The individual innerspring pocket coils in this xl twin mattress work independently, you don't have to worry about waking up your sleeping partner every time you climb into or out of bed or change position. Pocket coils are separated by the isolated fabrics and there is little feel of coils underneath. 【Ergonomic Support and Pressure Relief】 Coolvie’s innovative 5-zone spring support systems are designed to work in perfect harmony with foams to ensure a balanced, refreshed sleep with less tossing and turning and minimal partner disturbance. An innerspring coil system for a touch of bounce and enhance edge support and your body weight is evenly absorbed and distributed comprehensively from head to toe throughout the mattress. 【Stay Cool with Whole Night】 This 12 inch twin xl size mattress is designed with 3D soft knit fabric on the top cover which is breathable and skin-friendly, absorbing moisture and balancing body temperature. The open cell high density foam under the cover promotes air flow when sleeping on this mattress. You don't need to worry about overheating. 【Convenient Shipping & Easy to Set Up】This 12 inch hybrid mattress twin xl is efficiently compressed into one box that’s easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours. It fits all kinds of twin xl size bed frames such as box Spring, floor, slatted base, flat platform. 【100-Night Home Trial 】You will get 100 nights trial and 10 years support for this twin xl bed mattress.If for any reason you are unsatisfied, our Coolvie customer support team will happily work with you to address any concerns to make it right.

12 Inch Twin XL Mattress, Hybrid Mattress 3 Layers Premium Foam with Pocket Springs, Medium Firm Feel, Pocket Spring for Motion Isolation & Targeted Support

Mettress 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:3 layer premuim foam and pocket springs design give you medium firm 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"H

How 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:
1Whatever 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.
3.Rotate the mattress regularly to extend the durability of the mattress.