- Sleep cooler through the night with DualCool Technology
- Feel supported with 900 Series Pocketed Coils
- Consistent comfort with the BeautyEdge Foam Encased Edge
Customer Appreciation Sale!
Sale Ends January 24th
The Sealy Essentials Osage Firm Twin XL Mattress provides an exceptional night's sleep. It is designed to last for years without losing quality.
This mattress has a comfort scale rating of 2, which makes it a very firm mattress as the name suggests. This is the firmest mattress available in the Posturepedic collection. It is the closest you will get to actually sleeping on the floor from Sealy.Support Designed For You
This mattress comes with Sealy's Response Pro Encased Coil, an elevated coil system offering the right amount of support, exactly where it is required. The coils respond individually to the curves of your body, allowing for targeted support. Individually encased coils give a reduction in motion transfer, allowing you a sound sleep, even beside a restless partner.Sleep Comfortably With A Mattress That Breathes
Included in the quilt is a layer of SealyCool Air Gel Foam. This offers an increased airflow through the mattress while you sleep, giving you a cool and comfortable sleeping temperature.More Support At The Edge Of The Bed
The Cooper Mountain V features a DuraFlex Edge, which is a flexible coil border placed around the mattress. This durable border increases sleepable space as you could sleep right to the edge of this mattress.Ready To Move
The sides of this mattress feature sturdy handles, allowing for easy movement and installation throughout the life of the mattress. This can be useful when moving houses or rearranging your living space.Is This Cal King The Mattress For You?
This is a wonderful option for back and stomach sleepers looking for a very firm feel. It has great airflow, durability, and responsive support.
|Cal King||11"||72"||84"||86 lbs.|
|Twin XL||11"||38"||80"||43 lbs.|
Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!
Stay tuned for another helpful analysis of how this bed feels. We provide all kinds of media to help you pick the best mattress.
See how far you'll sink into our mattresses - see how they'll feel. With our Comfort Depth measurements you'll know how a mattress will feel.Learn More »
|Delivery Options & Timing:|
Our contactless delivery helps keep you and delivery personnel safe!
Leave the heavy lifting to us with our white glove service!
You'll be contacted by our carrier to schedule delivery. Someone must be home to accept delivery. Weekend and evening deliveries may be available for a nominal fee. Call us at 1-800-455-1052 for availability and pricing. Please note that furniture and bedding deliver separately from your mattress order.
*Please check your zip code delivery estimate on individual mattress model pages for a proper estimate. Remote locations can experience longer lead times.