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This hour's deals
Nightynight
Nightynight Firm Memory Foam Mattress
−50%
Home · Walmart

Nightynight Firm Memory Foam Mattress

Deal score 5.6 · Good deal
$89.98$179.98 Walmart's regular price

You save $90.00 at Walmart

Deal.ai's agents found this deal on November 11. The store may have changed its price since.

Why it's a great deal

  • Walmart lists its regular price at $179.98: 50% off by its own figures
  • Rated 4.7 out of 5 by 77 buyers
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Every store we checked

  • WalmartNew

    In stockSold by NightyNight

    $89.98Checked 56 min ago
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Price history and every store's price →

Reading Walmart’s product page for the details…

Specs

Size
Twin
Specialty Style
Sofa Bed
Thickness
6 in

About the Nightynight Firm Memory Foam Mattress

The Nightynight Firm Memory Foam Mattress is a 6-inch twin mattress built for sofa beds, guest beds and tight spaces. The firm memory foam surface is meant to hold its shape under sleepers who want support rather than sink. At 6 inches it is thinner than most standard mattresses, so it suits occasional or light use better than nightly sleeping for heavy adults. Owners rate it well overall, though the firmness and thin profile are the main points of debate.

Best forSofa beds and convertible framesGuest rooms and occasional sleepersKids' rooms and bunk setupsBack and stomach sleepers who want a firm surface
Pros
  • Firm memory foam gives steady support with little sink
  • 6-inch profile fits sofa beds and low frames
  • Twin size suits tight rooms and bunks
  • Memory foam dampens motion between sleepers
  • Simple setup: unroll and let it expand
Cons

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Price facts

  • This deal was $89.98 at Walmart on Nov 11.
  • Lowest price today: $89.98 at Walmart (checked Nov 11, 2026).

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Thin 6-inch build offers little cushioning for heavy adults
  • Firm feel is too hard for side sleepers who want pressure relief
  • May not fully expand or may feel flat at the edges
  • Not built for nightly use over many years
  • What reviewers say

    • 4.7 / 577 ratings

    Owners give it strong marks, with most praising the firm support and the fit in sofa beds and guest rooms. The common complaints are that it feels hard and that the thin profile is not enough for everyday sleeping.

    What people mention
    • FirmnessMixedSome sleepers like the firm support; others find it too hard, especially side sleepers.
    • ThicknessCriticisedThe 6-inch build feels thin to heavier adults and on longer overnight use.
    • FitPraisedOwners say it fits sofa beds and guest frames where a full mattress will not.
    • SupportPraisedReviewers report it holds its shape and does not sag much with occasional use.
    • Edge supportCriticisedThe edges feel softer and less supportive than the middle.

    Questions and answers

    Is this mattress good for side sleepers?
    It is firm, so side sleepers who need pressure relief at the hips and shoulders may find it hard. Back and stomach sleepers usually do better on it.
    Will it work in a sofa bed?
    Yes. The 6-inch twin size is made for sofa beds and convertible frames, and it keeps the folded bed thin enough to close.
    How long does it take to expand?
    Memory foam usually needs a day or two to reach full height after unrolling. It may sleep a little firm at first.
    Can I use it as an everyday mattress?
    It suits occasional and guest use best. For nightly sleeping by adults, a thicker mattress gives more cushioning and lasts longer.
    Does it need a box spring?
    A solid or slatted base is enough. On sofa beds, use the frame's own platform rather than adding a box spring.
    Is it hot to sleep on?
    Memory foam can trap heat. The thin build helps a little, but hot sleepers may still notice warmth.
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