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Sleep Sync Blueberry 7-inch Twin-size Memory Foam Mattress

Overall Rating Rating 4.7  |  152 reviews  |  Write a review
Today $189.99
$186.00 (49%) off
MSRP: $375.99
Item #: 13348251
    With this seven-inch twin-size memory foam mattress, you can enjoy a relaxing, restful night of sleep. The mattress contours to your body, promoting spinal alignment and reducing pressure points, so you can wake up without sore muscles....more

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Sponsored Links What's This?
    This pressure-sensitive contouring memory foam mattress relieves pressure points and encourages proper spinal alignment, which is vital for healthy development. This mattress is constructed using certified eco-friendly manufacturing.

    • Materials: Memory foam, support foam
    • Density: 2 inches of 3-pound memory foam and 5 inches of 1.8-pound support foam
    • Comfort level: Medium firm
    • Mattress measures 39 inches wide x 75 inches long x 7 inches thick
    • Memory foam is resistant to dust mites and is naturally antimicrobial
    • Originally designed for NASA, this space age foam cradles your body, reducing pressure points that cause tossing and turning
    • Pressure sensitive memory foam molds to your body to provide increased circulation and gentle support.
    • Eliminates motion transfer
    • Never needs turning
    • Disperses your weight evenly
    • Mattress can be used with an existing frame
    • Great for platform beds and slatted frames
    • Meets all flammability standards
    • Blueberry-colored velour terry cotton cover

    Memory Foam Do's and Don'ts:
    • To maximize memory foam expansion; remove from packaging within 72 hours of receipt.
    • This product arrives very tightly packed. Please unwrap and allow 48 hours for this product to return to its original shape.
    • Being sealed in plastic packaging sometimes traps odors. A few hours of airing usually removes the odor.
    • Due to machine cutting manufacturing processes, there may be slight variances in the dimensions of this product.

    Due to the nature of Memory Foam 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.
20 year Limited Manufacturer
Memory foam & Velour cover
Model No:
507 Twin Blueberry
Brand: Sleep Sync


  • Mattress Type
    Memory Foam
  • Thickness
    7 Inch
  • Memory Foam Type
    Foam, Memory Foam
  • Density
    3 Pound
  • Support
    Firm, Medium
  • Mattress Top
  • Product Features
  • Recommended Foundation Type
    Bed Slats, Box Spring, Platform
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Showing 5 most helpful reviews on this product.

  • 5 Stars 115
  • 4 Stars 31
  • 3 Stars 3
  • 2 Stars 1
  • 1 Stars 2
  • Great Mattress!!

    We tried this exact same matteress at a store and loved it. Found it 1/2 the price here on overstock.com. Our daughter loves it and won't go back to a traditional mattress. It arrived quickly. Definately needed to let it fluff up after being vacumm sealed, but was great! We're using it on a bunk bed and is the perfect size. We're thinking of replaceing our guest room queen bed with a blueberry when the time comes! An excellent matteress for an outstanding price!!

  • My child FINALLY sleeps through the night!!

    Bought this mattress for my 2 year old's race-car bed-PERFECT FIT. Item is exactly how it was described. THERE WAS NO ODOR! Opened it the day it came and followed instructions for "airing out". My son had only slept through the night half a dozen times since he was born before we bought this mattress-now he sleeps through the night EVERY night. This mattress has been a LIFE-SAVER!!

  • Great mattress for the price

    I was a bit concerned as it was very thin out of the box. I knew it would expand, but didn't realize that it would expand to be pretty much the thickness of an innerspring mattress. It's very comfortable; perfect for the platform bed in my guest room.

    • How did the color on site compare with the actual product? accurate
    • Please tell us about the quality of the product. I's very comfortable. It's in my guest room, but I slept on it myself to be sure.
    • How accurate was the on site description of the product? very accurate
  • Excellent mattress

    I ordered a firm mattress for an adult. I slept on it for couple of nights to test it, and it provided a good support. I'm 5'11", 200lbs

    • How did the color on site compare with the actual product? accurare
    • Please tell us about the quality of the product. no issues
    • How accurate was the on site description of the product? accurate
  • Excellent mattress

    Mattress is so comfortable no more my son loves it no more back pain he says feels like cloud good buy highly recomended.

    • How did the color on site compare with the actual product? Excellent
    • Please tell us about the quality of the product. Excellent
    • How accurate was the on site description of the product? Excellent
View All Most Helpful Reviews
  • nice & soft

    this mattress is perfect for my little guy and I don't mind snuggling at bedtime either!


    almock Apr 22, 2015

  • kid seems to pass out

    I've never slept on it but he's never had trouble falling right asleep on it and it's comfy when I lay there and read to him. I love that it was cheap enough that if there was any of that bed wetting, I could just toss it.


    eileen X. Apr 22, 2015

  • Great Mattress

    I originally was using a sealy mattress I bought from Costco (HORRIBLE decision) which ended up giving me very, very bad back and neck pain after about 2-3 months of use. I kept using it because I thought I couldn't afford another one which was definitely a bad decision. When I finally couldn't take it any longer and could barely get myself out of bed because of my pain and lack of sleep is when I went online, looking for a new mattress. I ended up deciding on this memory foam mattress because it's the highest rated mattress on this site with people constantly raving about how great it is. I've been using this mattress for about 4 months and it's still as great as when I received it. It's definitely helped a lot of my back pain go away but I think that crappy mattress from Costco gave me some permanent damage as I still struggle with some pain every day. It's comfortable, doesn't dip in the middle at all like spring mattresses and doesn't make me overheat any more than a spring mattress. I can 100% guarantee you won't regret buying this mattress. For the price it can't be beat though it would have still been worth it if it was going for up to $100 more. This mattress has definitely converted me to memory foam mattresses. I hope this company never goes out of business because I will be buying from them for as long as I live.


    Sevana N. Apr 22, 2015

  • Sleep Sync Blueberry 7in Twin Memory Foam Mattress

    My 12 year old son loves it, says it's really comfortable! Really happy with the purchase.


    Mia K. Apr 21, 2015

  • Comfy mattress

    I use this mattress on top of crates to make a sofa on my porch. It is so soft and comfortable! The color is fun, however, the cover does not zip off. That would be a nice feature.


    Julie W. Apr 15, 2015

View All Most Recent Reviews

Product Q&A

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Why did you choose this product? Overstock on Apr 9, 2015
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listed as eco-friendly when ordered originally 3 years ago - have since loved mattress and this is 3rd purchased  on Apr 9, 2015
memory foam  on Apr 12, 2015
good price and good reviews  on Apr 14, 2015
Great reviews and apparent value. tallguyd on Apr 15, 2015

Is this product brand new? amaraa on Nov 26, 2014
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Hello amaraa, yes this is new. Have a great day! overstockcustomercare1 on Nov 26, 2014
yes Perfect on Dec 25, 2014

Does the cover on this mattress zip off? kathyhmb on Nov 18, 2014
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Hi kathyhmb, the cover is not removable. I hope this helps, thank you for shopping with us! overstockcustomercare1 on Nov 19, 2014

I noticed this note in the product description: "■Due to machine cutting manufacturing processes, there may be slight variances in the dimensions of this product." Is it possible, therefore, to request the shipping/fulfillment department, to select a mattress with a 'narrower' dimension? (I'm in need of a mattress as close to 37" in width as possible.) Many Thanks, lastplace on Oct 15, 2014
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Hello lastplace, unfortunately, we cannot do custom orders like that. Sorry for the inconvenience. Thank you for shopping with us! overstockcustomercare1 on Oct 17, 2014

How much does this mattress weigh? I need it for a bunk bed amyg1016 on Sep 11, 2014
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Hi amyg1016, this mattress weighs approximately 34lbs. Thanks for shopping with us! Sherri R. overstockcustomercare2 on Sep 12, 2014
We use this for the top bunk on a bunk bed. It is very light weight and also pretty comfortable. mmiller on Oct 15, 2014

Is there any differannce in the twin blueberry 7in. & the raspberry 7in. memory foam mattress? roc460 on Jun 5, 2014
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Hello roc460, the only difference seems to be the color. Thank you for shopping with us. overstockcustomercare1 on Jun 13, 2014

As it's blueberry color, will it leave a stain on the white sheets if the mattress cover gets wet? daxi on Dec 13, 2013
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Hello daxi, This should not leave a stain if it gets wet. Thank you for shopping with us. overstockcustomercare1 on Dec 17, 2013

Can this size mattress be used for the bottom of a trundle bed? anneru on Dec 7, 2013
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Hello anneru, This mattress has received excellent reviews! This mattress could definitely work in a trundle bed, but you would want to double check your bed and ensure it requires a twin. I hope this helps. Thanks for shopping with us. overstockcustomercare1 on Dec 8, 2013

Can the cover be removed from the mattress and if so does it zipper/elastic/Velcro back on after laundered? malcomex on Aug 29, 2013
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The cover cannot be removed. megannyan on Sep 5, 2013

According to the information shown on Overstock.com, this mattress has a 20 year warranty. I find this too good to be true. Please tell me everything you can about the warranty. ffeelin on Mar 27, 2013
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Thank you for your inquiry regarding the 20 year warranty for the Spinal Response 7" Twin sized Memory Foam Mattress. That is a limited manufacture warranty that covers defects in workmanship and materials, loose or broken parts not caused by improper care or product abuse. and body impressions of more than 1 ½ inches on all sleeping surfaces. I hope this answer helps you. overstockcustomercare1 on Mar 29, 2013

Do I need or can I use a box spring with this? chandra513 on Dec 11, 2012
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You can if you want. In fact it makes for a VERY cushy bed. but it is designed for use without a box spring on a platform bed, overstockcustomercare1 on Dec 11, 2012
You don't need one, but you could use one. We're using it on a bed that has 3 inch slats all along the bed, and are not using a bunkie board or a box spring. mswm80 on May 24, 2013

What is the weight of the twin mattress? pck123 on Dec 9, 2012
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The weight is 34 pounds. overstockcustomercare1 on Dec 10, 2012

can i order a specific sized memory foam matresss 72"x38"x7" depriest3 on Dec 1, 2012
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Unfortunately, we do not accept special orders. overstockcustomercare1 on Dec 3, 2012

Do you ship this item to APO/FPO military addresses? morris440 on Nov 26, 2012
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Yes. When ordering, place the proper APO/FPO code in the the state field with the proper address. overstockcustomercare1 on Nov 26, 2012
Thank you for your interest. We ship almost all items to APO/FPO addresses. The exceptions are address related. Upon placing their order, a customer will be unable to proceed if the item cannot be shipped for whatever reason. Please feel free to contact us again with any further questions. overstockcustomercare1 on Nov 28, 2012

Do the mattress come with frame or do you have to buy that separate? sprince1 on Oct 5, 2012
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This is just the mattress. overstockcustomercare1 on Oct 5, 2012

It is the memory foam manufactured in U.S.?  on Sep 8, 2012
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No, this product is made in China. overstockcustomercare1 on Sep 10, 2012

Who is the manufacturer? What happens if I get this and within a year it has a body impression? mommyliz on Jul 31, 2012
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We are unable to disclose the manufacturer of some of our products; however, Overstock.com stands behind every product we sell. When necessary, we can contact suppliers if a product issue arises. overstockcustomercare1 on Aug 1, 2012

Exactly how many inches of memory foam and how many inches of support form is in this product ? Thanks ozgirl99 on Jul 7, 2012
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This has (2) inches of 3-pound memory foam and (5) inches of 1.8-pound support foam. overstockcustomercare1 on Jul 11, 2012

What is the brand? schoolyg on Jun 26, 2012
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We are very sorry. The brand and manufacturer information are not available for this item. overstockcustomercare1 on Jun 27, 2012

Can you wash the velour mattress cover?  on Jun 15, 2012
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Yes, you can wash the mattress cover. We recommend washing the cover by hand. overstockcustomercare1 on Jun 15, 2012

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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.
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This item cannot be shipped to Alaska or Hawaii.
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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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* 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.

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