PostureLoft Karolina 8-inch Twin-size Innerspring Mattress

by PostureLoft
At other retailer: $151.99
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ITEM# 18544825
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      Included Warranty: 10 year Limited Manufacturer
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    ITEM#: 18544825

    The Advantage Plush Innerspring mattress features an 8 inch profile with Edge Support coils that encase plush support coils for ultimate comfort. The twin size mattress offers medium support with 8 inch individually wrapped coils are in their encased in separate pockets so they can contour precisely to your body. Covered with a beautifully detailed quilted knit cover for breathability. Individually wrapped coil innersprings move independently and reduce the sensation of movement on a bed providing contouring comfort and support for an undisturbed night sleep. Ships compressed for ease of delivery and setup and is able to fit down any narrow hallway or staircase. 

    • Mattress Top: Plush Top
    • Recommended Foundation Type: Platform, Box Spring, Bed Slats
    • Delivery Method: Innerspring - Small Parcel
    • Thickness: 8 Inch
    • Mattress Type: Innerspring
    • Size: Twin
    • Dimensions: 8 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 Type Innerspring, Mattress Only
    Thickness 8 Inch
    Mattress Top Plush Top
    Mattress Support Medium
    Product Features Bed in a Box
    Recommended Foundation Type Bed Slats, Box Spring, Platform
    Set Includes 1 Piece
    Dimensions See Details
    Warranty 10 year Limited Manufacturer
    Model Number 413001-1110
    Country of Origin China
    • Most Recent

    • You will be surprised.
      Verified Purchase

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

      When this mattress arrived, I scratched my head, wondering how a inner spring mattress could be a small box. To my surprise I unrolled it, and within a matter of seconds there was a twin size mattress. Put it on our extra bed for visitors. So far everyone that’s sleeps on it says it is comfortable.

      Read More
    • Verified Purchase

      The mattress works for a spare guest bed but it’s a bit thin for use every night.

      Read More
    • PostureLoft 8-inch twin mattress
      Verified Purchase

      Product was delivered on time, product was well packaged. Product is very comfortable.

      Read More
    • RL in Boca
      Verified Purchase

      amazing to watch bed unfold. very comfortable good support. guests love it.

      Read More
    • Super buy.
      Verified Purchase

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

      My friend says it is so comfortable. He wasn’t sure buying online since he has always picked one out at a store. He was pleasantly surprised at the quality and feel.

      Read More
    • Most Helpful

    • Great mattress at an even better price
      Verified Purchase

      I was a bit nervous about ordering a mattress online. We needed a twin mattress for a new daybed, and didn't want to spend too much since it will have minimal use as a guest bed. I contacted a few local mattress companies and to get a mattress thicker than 6 or 7 inches costed more than expected, and I didn't want to sacrifice mattress thickness just to save a few bucks. So, I decided to look on Overstock. I viewed several twin mattress reviews here and decided on this one. When it arrived, my husband was a bit puzzled since it was in a smaller box. But after opening it, the mattress immediately opened and filled out after starting to remove the wrapping. After 24 hours, it had only expanded to about 7 inches height. But after 3 days, it fully expanded. The mattress is soft, but not too soft, and has a nice level of firmness to it. I already had a mattress pad and cover, so I added it, but this mattress doesn't need it. I just like the added thickness, as the mattress pad and cover adds about 2 more inches. I'm ecstatic that I took a gamble on ordering a mattress online, I saved on the price of the mattress and delivery costs by doing so.

      Read More
    • Comfortable sleeping
      Verified Purchase

      This mattress arrived quickly and upon opening the shrink wrap, it took just a few hours to get to full size. The mattress fits comfortable on my daughter's Captain bed and is very stable. I like the fact that it does not transfer weight easily so when I take her to bed some nights she doesn't even realize I've left. Very good for a preschooler, not a lot of bounce Donna fun jumping on the bed. :-) I think this mattress will last a while. I would consider this mattress in a different size, full for my older daughter's bed in the future!

      Read More
    • Very happy for the price!
      Verified Purchase

      Bought this mattress along with Prlage 9-inch Twin-size Smart Box Spring Mattress Foundation for my mother to sleep on when she visits. It looks and feels thick enough and firm enough to handle an adult sleeping on it without smushing down to the foundation. Granted, no one has slept on it yet, but I laid on it for a few hours and it felt great. It is not a flippable mattress, however, FYI. Would buy another if we ever needed one.

      Read More
    • mattress
      Verified Purchase

      I love the feel of these oversize mattresses and so does my children.

      Read More
    • Quality spring plush mattress
      Verified Purchase

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

      Bought for our 150lb young man. If you like springs and the push back they give, instead of sinking into a foam mattress, then this mattress is for you! It's comfortable, with the plushiness on the top, encased in softness. Purchase a waterproof mattress encasement and you'll be "good to go."

      Read More

    Questions & Answers

    • Q:

      "Is this mattress flip-able? meaning...can you flip it over after six months and sleep on the other side of it to prevent it from getting a dent or a well in it?"

      • A:

        No, this mattress cannot be flipped over to sleep on the under side.

      • A:

        No it's not a fipplable mattress. You can roatate the mattress to avoid the dents & sags.

      Read more Read less
    • Q:

      "does this mattress come in queen size ?"

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

      "Does this mattress have PBDEs, TDCPP or TCEP (“Tris”) flame retardants, ozone depleters, mercury, lead and heavy metals?"

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

      "does it need a box spring?"

      • A:

        I bought one but I wouldn't think so fior a cargo type bed

      • A:

        No it does not. We are using this and another type of matress on a trundle bed and it is very comfortable.

      Read more Read less
    • Q:

      "Why did you choose this product?"

      • A:

        good price for more than 6 inch mattress and I needed two for my grandchildren.

      • A:


      • A:

        Good reviews

      • A:

        I bought for daybed ordering also, comment reviews sounded like it would be decent sleeping for bed, and was well priced.

      • A:

        Just needed a mattress for twin bed.

      • A:

        Price and good reviews

      • A:

        For my child

      • A:

        Needed extra need for guest , good price and good reviews

      • A:

        Need a good mattress for our daybed in guest room.

      • A:

        Right size, good reviews, looked comfy.

      Read more Read less

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    Usually leaves our warehouse in 1-2 business days. *

    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.
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    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.
    More 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.