Twin-size 12-inch Innerspring Mattress

Today:$15699
MSRP: $300.00
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ITEM# 18818960
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Details

ITEM#: 18818960

Our most popular pocket encased coil spring mattress is a phenomenal high-quality 12-inch certified independently and individually wrapped pocketed encased coil pocket spring contour mattress. This wiss Ortho Sleep® Mattress is temperature sensitive, body forming super long lasting high quality and extremely durable, for many years of undisturbed night's sleep, each separate pocketed coil is individually and independently wrapped to provide a support system for an individualized comfort by contouring precisely to each person's body perfectly. it also doesn't transfer motion, for a peaceful undisturbed sleep even if your partner moves at night. our signature motion isolation pocketed encased coil mattress is made for optimum deep comforting pressure relief sleep. By relieving the pressure points, pocket coil mattresses allow blood and much needed oxygen to circulate and flow more efficiently throughout our bodies. This mattress also contains a bamboo cover which allows breathability all throughout. Delivered to you in an easy and convenient compressed packing.

  • Mattress Top: Quilted
  • Recommended Foundation Type: Platform, Box Spring, Bed Slats
  • Delivery Method: Innerspring (Small Parcel)
  • Thickness: 12 inches
  • Mattress Type: Innerspring
  • Support: Medium
  • Size: Twin
  • Dimensions: 12 inches high x 39 inches wide x 75 inches long

This product comes vacuum packed and rolled in a portable box for customer convenience. You can sleep on it the same night you unwrap it, however please allow 3 days for mattress to rebound to full height.

Once opened this product is non-returnable.


Mattress-in-a-Box Information:
  • Arrives tightly packed in convenient portable box or bag
  • Remove from packaging within 72 hours to maximize expansion
  • Can be used the same night it is unwrapped, however allow 48 hours to fully return to its original shape
  • After unwrapping, air for a few hours (vacuum sealing sometimes traps odors)
  • Due to machine-cutting manufacturing processes, there may be slight variances in dimensions

Once opened this product is non-returnable.

Specs

Features
Mattress Type Innerspring
Thickness 12 Inch
Comfort Level Medium
Product Features Bed Slat Friendly, Mattress in a Box, Platform Friendly
Set Includes 1 Piece
Dimensions 12 inches high x 39 inches wide x 75 inches long
Model Number SKL01
Country of Origin China
  • Are there more for sale on the site?
    Verified Purchase

    the person who slept on it while visiting family members actually asked me that! I expected a smaller box than usual, because I read reviews of the mattress. But I expected the box to be tall and thin. We were so surprised when the box turned out to be about 4 feet tall, with a square diameter of about 4 feet, too. It wasn't exactly a light item. My daughter had to help me push and shove the box up the stairs. I managed to get it into the space allotted for it, and then began opening it. The box was easy to open. But inside, layers of heavy plastic wrapped around the mattress again and again. I was standing at the part of the package where the head of the mattress would go. I snipped and snipped away with my scissors until - SPROING!!! - the mattress suddenly opened and unrolled itself. It's s good thing that I am not a prideful person, because it knocked me off my feet. But slowly, do I am I injured. Like other reviewers said, it seemed to reach its maximum height of 12" almost immediately. We put it on a trundle, and st first weren't sure if it was too high to go under the main bed! It fit, but barely. You already know what the person who used it thought of it! She'd like to buy one just like it for home!

    Read More
  • Very comfortable
    Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    I was surprised when this mattress was delivered and it was in a small box for a mattress. I opened the box and opened the packaging and the mattress flipped out. Very comfortable to sleep on.

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  • Tyler
    Verified Purchase

    At first I thought it was a joke a mattress in a box yeah right... but after opening the box I was pleasantly surprised to find this mattress two down one more bed to go the only issue that I have with the mattress is the fact that it's advertised as a 12 inch mattress and it's not but otherwise I am very happy with this purchase

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  • Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    This is the most comfortable mattress in the house and it did not need any time to open it was ready to sleep on the same night. It fit perfectly in my daughters day bed and she loves it

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  • Verified Purchase

    This user earned $1.00 in rewards for writing this review.Learn More

    I ordered two of these mattresses for beds in my kids rooms. They came today and we were surprised at the size of the box, my son ask if I was sure they contained mattresses. I opened the one for my daughter's room first, it was sort of amazing to watch it instantly puff up! She immediately put fresh sheets on it because there was no odor from being sealed. Then she laid down to give it a try and loved the comfort. It's a great mattress, especially for the price. After my son saw his sister's comfy bed he cleaned up his own room so I would let him have his new mattress. That was a real bonus! If you need a mattress, at this point, I'd say this is a good choice.

    Read More
  • Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    Very cool how mattress was vacuum sealed on arrival. Once packaging was opened mattress inflated within minutes. The children love the new mattress and I would definitely recommend this item.

    Read More
  • jgomom
    Verified Purchase

    I was pleasantly surprised to see the thickness and comfort level of this mattress. I bought both the mattress and box springs for my 8 year old daughter, but I would like to have one like it for myself. You won't be disappointed.

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  • Verified Purchase

    Solid, just the right firmness. I've had 2 people sleep in this mattress and got a good night's sleep. I am going to order another.

    Read More
  • Comfy Mattress
    Verified Purchase

    Arrived timely and was quite surprised how quickly it recovered to nearly 11 inches...still after two days it has not reached the potential 12 inches, but it is firm, but comfy. Mattress is not made to flip...bought mattress cover and pad for extra life and comfort. Got these for a guest room so they will be used quite often...will update in a few months to indicate how they are holding up. Mattress is available for a lower price, but with free shipping and no tax, it was still a bargain at Overstock. :)

    Read More
  • Comfy
    Verified Purchase

    On the second day my son slept on this mattress he had a bad cold and I spent most of the night in bed trying to make him comfortable, so I can personally attest that it is very comfortable. There was a half-dollar sized stain on the mattress when it arrived which made me nervous, but I checked all of the seams and the bed appeared to be brand new. I did spray it down with a bleach solution I use for sanitizing our mattresses every now and again just in case.

    Read More
  • Are there more for sale on the site?
    Verified Purchase

    the person who slept on it while visiting family members actually asked me that! I expected a smaller box than usual, because I read reviews of the mattress. But I expected the box to be tall and thin. We were so surprised when the box turned out to be about 4 feet tall, with a square diameter of about 4 feet, too. It wasn't exactly a light item. My daughter had to help me push and shove the box up the stairs. I managed to get it into the space allotted for it, and then began opening it. The box was easy to open. But inside, layers of heavy plastic wrapped around the mattress again and again. I was standing at the part of the package where the head of the mattress would go. I snipped and snipped away with my scissors until - SPROING!!! - the mattress suddenly opened and unrolled itself. It's s good thing that I am not a prideful person, because it knocked me off my feet. But slowly, do I am I injured. Like other reviewers said, it seemed to reach its maximum height of 12" almost immediately. We put it on a trundle, and st first weren't sure if it was too high to go under the main bed! It fit, but barely. You already know what the person who used it thought of it! She'd like to buy one just like it for home!

    Read More
  • Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    I did not like the matress at all. Since I opened it I knew it could not be returned. It was so soft that you got no support at all. I just gave it to the good will. Someone will benefit from it. I know I will never order a matress on line again,this wasn’t the first time,so shame on me.

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  • Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    This bed is so high up I am so happy I got the 12” for my daughters trundle bed..my daughter was smiling from ear to ear , she was so pleased especially this being her first bed , she said “it’s so soft and comfortable I’m sleeping in my own bed tonight mommy “

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  • Verified Purchase

    This user earned $1.00 in rewards for writing this review.Learn More

    Excellent mattress for my boys, aged 8 and 12. Not too firm and not to soft, just perfect. I even slept on this mattress. Feels like your in a cloud.

    Read More
  • Verified Purchase

    This user earned $1.00 in rewards for writing this review.Learn More

    I ordered two of these mattresses for beds in my kids rooms. They came today and we were surprised at the size of the box, my son ask if I was sure they contained mattresses. I opened the one for my daughter's room first, it was sort of amazing to watch it instantly puff up! She immediately put fresh sheets on it because there was no odor from being sealed. Then she laid down to give it a try and loved the comfort. It's a great mattress, especially for the price. After my son saw his sister's comfy bed he cleaned up his own room so I would let him have his new mattress. That was a real bonus! If you need a mattress, at this point, I'd say this is a good choice.

    Read More
  • Verified Purchase

    What a wonderful night sleeping on my new mattress! Would recommend it to adult or child. Comfortable...soft...good support...a real winne!

    Read More
  • Verified Purchase

    So far loving the mattress! Great price and it’s supportive and comfortable! Easy packaging!

    Read More
  • Verified Purchase

    This user earned $1.00 in rewards for writing this review.Learn More

    THis is a very nice comfortable thick mattress. It does not fit a twin fitted sheet though so keep that in mind... I havent found a sheet yet but will try twin xl

    Read More
  • Verified Purchase

    Though this is a thinner mattress topper it is very comfortable! It's on my son's bed and he loves it.

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  • Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    Good mattress for the price. I bought it for my adult son and he finds it comfortable. The only thing is that the mattress tends to slip on the foundation. He needs to find something to put under it so it won't move around.

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  • Verified Purchase

    This user earned $2.00 in rewards for writing this review.Learn More

    Very cool how mattress was vacuum sealed on arrival. Once packaging was opened mattress inflated within minutes. The children love the new mattress and I would definitely recommend this item.

    Read More

Questions & Answers

  • Q:

    "Is it memory foam? It says coil, but how does it come rolled up or compressed into a small box?"

    • A:

      it is not memory foam, it is an inter-spring mattress. It is rolled up and compressed, wrapped in plastic and sent in a box. Once you remove the box and plastic - the mattress will unroll and it takes a few hours to reach the maximum height of the mattress. It is very supportive and just as good as one you buy at a mattress store.

    • A:

      I'm not sure what innerspring is comprised of but it is not the traditional coil system. I can tell you this- it is extremely comfortable and wears very well. It has good support as well. I though it was worth every penny!

    Read more Read less
  • Q:

    "Do regular size twin kid sheets fit this mattress?"

    • A:

      tes...regular twin sheets fit. My son loves this mattress

    • A:

      Yes. Perfectly!

    • A:

      Yes, I purchased this mattress for my daughter and have had no problem buying sheets that fit. As a matter of fact I am going to be buying a Queen size for myself! :)

    Read more Read less
  • Q:

    "Can this mattress be flipped and the opposite side used?"

    Have an Answer? Be the first to answer this question!
  • Q:

    "Is there off gassing? What is it made of?"

    • A:

      There is no off gassing. This is a coil mattress with a poly fill.

  • Q:

    "If it isn't 12 inches, how thick is it?"

    • A:

      This mattress is 12" inches thick. It usually takes at least 48 hours for the mattress to expand. There have been cases where the mattress is 11.5" after 48 hours but those are rare.

  • Q:

    "Why did you choose this product?"

    • A:

      need it for the bed hoping for the best with this product....it looks high enough and firm enough to support the weight of people

    • A:

      someone told me to

    • A:

      Reviews were favorable

    Read more Read less

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Shipping & Returns

Contact Information

Shipping Information:

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

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.
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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.