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PennyFound | Staff 14.6K Views
Jan 15, 2026 8:07 PM

Zinus 5" WonderBox Smart Queen Mattress Box Spring (Box Spring Only)

$20

$75

73% off
Walmart
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Deal Details
Walmart has Zinus 5" WonderBox Smart Queen Mattress Box Spring Foundation on sale for $20.40. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

Thanks to Deal Hunter PennyFound for sharing this deal.

Details:
  • Delivered in our earth-friendly WonderBox that is surprisingly small and easy to maneuver through doorways and tight corners.
  • Tool-free design snaps together in minutes for a frustration-free setup.
  • Provides long-lasting support for your mattress, maximizing comfort and lifespan.
  • Sleep soundly with an included 5-year warranty.
  • Box Spring only, Mattress and Bed Frame not included.

Editor's Notes

Written by SaltyOne | Staff
  • Rated 3.7 out of 5 stars from customer reviews.
  • At the time of this posting, our research indicates that this is $64.79 lower than the next best comparable online prices starting from $85.19.

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Walmart has Zinus 5" WonderBox Smart Queen Mattress Box Spring Foundation on sale for $20.40. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

Thanks to Deal Hunter PennyFound for sharing this deal.

Details:
  • Delivered in our earth-friendly WonderBox that is surprisingly small and easy to maneuver through doorways and tight corners.
  • Tool-free design snaps together in minutes for a frustration-free setup.
  • Provides long-lasting support for your mattress, maximizing comfort and lifespan.
  • Sleep soundly with an included 5-year warranty.
  • Box Spring only, Mattress and Bed Frame not included.

Editor's Notes

Written by SaltyOne | Staff
  • Rated 3.7 out of 5 stars from customer reviews.
  • At the time of this posting, our research indicates that this is $64.79 lower than the next best comparable online prices starting from $85.19.

Original Post

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13 Comments

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Jan 16, 2026 2:40 AM
1.3K Comments
Joined Nov 2016
shigro420Jan 16, 2026 2:40 AM
1.3K Comments
Although a good price, I wouldn't expect this to do a very good job. Zinus box steel products are pretty flimsy.
Jan 16, 2026 7:14 AM
360 Comments
Joined Mar 2014
KnightStarJan 16, 2026 7:14 AM
360 Comments
Reviews said no feets like the ones pictured.
1
Jan 16, 2026 7:39 AM
126 Comments
Joined Sep 2012
PatrickH2067Jan 16, 2026 7:39 AM
126 Comments

Our community has rated this post as helpful. If you agree, why not thank

I used to refurb Airbnb rooms. They always bought this trash. I put together fifty of these, give or take, and at least half of them had to be repaired or replaced. In the end, the owners all started buying actual bed frames.
If you are big, don't buy this. If you're 'rough' at all in bed, don't buy.
3
1
Jan 16, 2026 8:27 AM
236 Comments
Joined Nov 2019
vns1Jan 16, 2026 8:27 AM
236 Comments
Isn't the size wrong? At 80x80" this is bigger than Queen (which is 60x80)
Jan 16, 2026 1:09 PM
386 Comments
Joined Nov 2015
EuphoriaFalconsJan 16, 2026 1:09 PM
386 Comments
Thanks OP
Jan 16, 2026 5:24 PM
5.1K Comments
Joined Jun 2008
AndrewinMDJan 16, 2026 5:24 PM
5.1K Comments
I was very interested until I saw what it is. My in-laws have one of these (very similar), and it's absolute trash. It would come apart no matter who climbed into the bed with a *THUMP* as the one of the joints slipped. There's nothing holding it together other than notches and tabs that loosely fit. I had to zip tie the pieces together in several places to make it work. Hard pass.
1
Jan 16, 2026 5:42 PM
288 Comments
Joined Dec 2013
alicemagicJan 16, 2026 5:42 PM
288 Comments
Pretty negative comments here but Amazon ratings seem fine

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Jan 16, 2026 8:30 PM
142 Comments
Joined Jan 2011
TwinTurboJoshJan 16, 2026 8:30 PM
142 Comments
Am I the only one that saw a PS3 Slim in the thumbnail?
Jan 16, 2026 8:54 PM
213 Comments
Joined Feb 2007
mbgrammerJan 16, 2026 8:54 PM
213 Comments
How is that a box spring? Looks like a foam mattress platform
2
Jan 16, 2026 11:13 PM
15 Comments
Joined Aug 2013
BarryB7266Jan 16, 2026 11:13 PM
15 Comments
Quote from alicemagic View quoted comment :
Pretty negative comments here but Amazon ratings seem fine
Probably "global" ratings. Also probably heavily padded by people hired to bring up a sellers ratings so they can sell more garbage than the next guy can.
1
Jan 17, 2026 7:05 AM
4.6K Comments
Joined Aug 2008
Alucard400Jan 17, 2026 7:05 AM
4.6K Comments
The thumbnail fooled me to thinking this was a PS3
Jan 17, 2026 4:13 PM
5K Comments
Joined Mar 2005
thegman230Jan 17, 2026 4:13 PM
5K Comments
Need full size
Jan 19, 2026 3:23 PM
13 Comments
Joined Dec 2018
PurpleFang5370Jan 19, 2026 3:23 PM
13 Comments
Gone dead reported and still pops up everytime I load the page.

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