I as well have a split frame box spring I do not like low beds, How do I keep the height? with the system I have and avoid the lump in the middle. Is there a kit for this or does a piece of 3/4 plywood fix the issue? .
Select Luxury Reversible 12-inch Cal King-size Foam Mattress
Perfect for platform beds or slatted frames or on top of a box spring this 12-inch California king, memory-foam mattress disperses weight evenly to provide pressure-relieving comfort. Lightweight and hypoallergenic. Made in the USA.
ITEM#: 13661861This 12-inch reversible California king foam mattress provides superior comfort for a good night's rest. This reversible mattress is constructed of a plush foam on top of high density foam covered in stretch knit ticking on each side.
- Construction: Foam
- Support: Medium
- Materials: 1.75-inch plush foam on each side of an 8-inch layer of high density foam
- Keeps true form and will not compress
- Lightweight and easy to turn
- Disperses your weight evenly and provides the ultimate in pressure-relieving comfort
- Made from 100-percent hypoallergenic materials that make this mattress ideal for those who suffer from allergies
- Mattress can be used with an existing frame
- Great for platform beds or slatted frames
- Meets all flammability standards
- Mattress: 84 inches high x 72 inches wide x 12 inches deep
- Remove from packaging within 72 hours of receipt to maximize expansion.
- This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape.
- Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours.
- Due to machine-cutting manufacturing processes, there may be slight variances in the dimensions of this product.
The firmness level of every item is unique. Please be advised that even similar products may produce different firmness results.
Once opened this product is non-returnable.
Click here to view more sizes.
|Memory Foam Type||Foam|
|Mattress Top||Plush Top|
|Product Features||Made in USA|
|Recommended Foundation Type||Bed Slats Box Spring Platform|
|Materials||1.5-inch plush foam on each side of an 8-inch layer of high density foam|
- Disclosures & Guidelines
- Filter By:
- Most Helpful
- Most Recent
I bought this because I purchased a queen size last summer and I thought it was too hard but after a week I noticed my back, side and any pains I had from sleeping where GONE! When I moved back home my pains came back. I thought I was getting sick. We had an expensive cushion top Cal King mattress on our bed. I decided to order a Cal King foam mattress from overstock all though not as hard as the queen again all my back, side and neck pain GONE. Why buy a $2,000 mattress when you can get this for a 1/4 the cost and have a great night sleep! Comes in a box rolled up. Opened the box in bed room and pulled mattress onto box springs wal-la the mattress comes to life in a matter of a few hours and is fully expanded in a day or so.No smell, no fuss and no pain! I would of liked it harder like the queen was, but perfectly happy!Read More
Shopped at retail outlets for new mattress. Liked Foam Mattress, however did not like the price. Decided to look on O.co to compare prices. Decided to try this one for one third of the price of retail. My husband and I love it. My husband was starting to have lower back pain in the morning from our old spring mattress and now he says he wakes up refreshed without pain.Read More
Really enjoying this mattress. My husband would have preferred it being softer. The only complaint is the cover over the foam has moved so the seam is a bit off.Read More
Could not believe small box opened up into a complete Cal King mattress! easy and comfortable.Read More
Questions & Answers
a professional contractor or a bed store expert may be the best person to consult
Can I place this mattress on top of a split frame box spring or will that cause a lump in middle of mattress? (Our box spring is currently 2 separate frames next to each other. Thanks for any info you have. Tracy
No, you cannot; it will cause a lump in the middle of the mattress.
Shopping Tips & Inspiration
Mattresses Buying Guide
Mattresses Buying Guide from Overstock.com. Learn about the different types of mattresses that are available and find just the right bed to get your best sleep ever.
How to Buy a Mattress
How to Buy a Mattress from Overstock.com. With a good mattress, you'll wake up rested and feel better throughout the day. Here's what you need to know about choosing the best mattress.
Best Mattresses for Christmas
Best Mattresses for Christmas 2014 from Overstock.com. This Christmas, treat your family and guests to new mattresses that will keep them comfortable for years to come.
Tips on Buying a Memory Foam Mattress
Tips on Buying a Memory Foam Mattress from Overstock.com. What should you look for when evaluating different memory foam mattresses? Here's what you need to know when you're shopping for memory foam.
How to Fluff a Pillow-Top Mattress
How to Fluff a Pillow-Top Mattress from Overstock.com. Learning how to fluff a pillow-top mattress is a breeze, and once you know how to do it, you'll never fear a deflated pillow-top again.
How to Choose a Serta Mattress
How to Choose a Serta Mattress from Overstock.com. Serta is one of America's most strusted mattress brands. Here's what to look for when you're shopping for a Serta mattress.
How to Select a Mattress Set
How to Select a Mattress Set from Overstock.com. People spend anywhere between six to nine hours each day in their beds, making it one of the most used pieces of furniture in any home.
How to Protect Your Mattress
How to Protect Your Mattress from Overstock.com. Our guides provide customers with information about how to protect your mattress and advice about our many brand-name products.
5 Tips to Help You Defeat Insomnia
5 Tips to Help You Defeat Insomnia from Overstock.com. If you have trouble sleeping, you're not alone. Did you know that 1 in 10 people have insomnia? Here are five methods that have helped many people get a better night's sleep.
FAQs about California King Mattresses
FAQs about California King Mattresses from Overstock.com. Our guides provide customers with answers to frequently asked questions about California king mattresses and advice about our many brand-name products.
Shipping & Returns
Mattress Return Policy:
Mattress Sets are non-returnable upon signature at delivery. Mattresses are
non-returnable if opened or taken out of their plastic wrapping.
Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final
shipping cost and estimated delivery timeframe will be available at checkout.
Standard shipping details
Expedited shipping details
* For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.
** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.