Hearth & Harbor 12" Twin Mattress in a Box, Cooling Memory Foam Mattress Twin, CertiPUR-US Certified, Fiberglass Free
Hearth & Harbor 12" Twin Mattress in a Box, Cooling Memory Foam Mattress Twin, CertiPUR-US Certified, Fiberglass Free
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Hearth & Harbor 12" Twin Mattress in a Box, Cooling Memory Foam Mattress Twin, CertiPUR-US Certified, Fiberglass Free

Hearth & Harbor 12" Twin Mattress in a Box, Cooling Memory Foam Mattress Twin, CertiPUR-US Certified, Fiberglass FreeHearth Harbor Green Tea Twin Mattress 12 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Twin Mattress 10 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Full Mattress 12 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Twin Mattress 8 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Queen Mattress 12 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea King Mattress 10 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Full Mattress 10 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea King Mattress 12 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Full Mattress 8 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Queen Mattress 10 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea Queen Mattress 8 Inch Fiberglass Free Cooling Memory Foam Mattress In A BoxHearth Harbor Green Tea King Mattress 8 Inch Fiberglass Free Cooling Memory Foam Mattress In A Box
Bed Size:Twin
Mattress Thickness:12 in

Key item features

  • Cooling Sleep Technology: Features cooling graphite memory foam and a green tea infused top layer to regulate temperature, absorb sweat, and neutralize odors for a refreshing sleep environment.
  • Advanced Heat Dissipation: An egg crate graphite foam middle layer efficiently draws heat away from the body with exceptional thermal diffusivity, ensuring consistent comfort.
  • Adaptive Body Support: A thick, body-contouring memory foam layer provides adaptive support for all sleep positions, relieving pressure points with personalized comfort.
  • Convenient Boxed Setup: Ships vacuum-packed in a box for easy transport and setup, requiring 24-72 hours for full expansion after unboxing.
  • CertiPUR-US Certified: Constructed with three layers of CertiPUR-US certified memory foam, ensuring the mattress is fiberglass-free and designed for safety.
  • Breathable Knit Cover: Finished with an OEKO-TEX certified breathable knit cover that enhances airflow and softness for a clean and comfortable sleep environment.
  • Multiple Size Options: Available in Twin, Full, Queen, and King sizes with 8-inch, 10-inch, and 12-inch profile options to suit various preferences.
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Current price is $174.00
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  • Free 90-day returns
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About this item

Product details

Specifications

Customer ratings & reviews

4.6 out of 5 stars
stars66 ratings28 reviews
How item rating is calculated
  1. 5 stars86% (57)
  2. 4 stars3% (2)
  3. 3 stars5% (3)
  4. 2 stars2% (1)
  5. 1 star5% (3)

Reviews summary

Pros

  • : Provides quality at a lower cost.
  • : Provides a restful night's sleep.
  • : Provides excellent support and cushioning.
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Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 28 reviews

Jul 4, 2025
Rhonda
Item details
Bed size: Full
Mattress thickness: 8 in
5 out of 5 stars review

Verified Purchase

Nice Quality %26 Comfort At A Reasonable Price

It was the second night that I slept on this mattress that impressed me. Upon arrival I was concerned that I'd misread dimensions, the mattress was folded in half and extremely compact. I'd had it on the platform maybe 10-hours before I went to bed and it was maybe 8" thick. The second night the mattress expanded to the full 10" thickness and is comfortable. --- It's my first experience with a full foam mattress so I'm sort of re-learning turning over. The mattress seems to have good support but at the same time my body kind of gullies into a position so that turning my torso over requires a bit of a lift before turning. Only time will tell if I can adapt to this change. --- I like the light weight of the mattress and the fact that I don't need a box spring. I thought I might need a board to go over my platform as the slats are further than the recommended 3" apart but it's been nearly a month and it doesn't seem to be an issue at all. ---- I do sleep well on this mattress and wake feeling good which is, to me, the most important measure for a good mattress. --- I'd buy this again and recommend it. I think it's a good value and arrived pretty quickly, too.

Incentivized Review
Helpful?4YQ7VL4QHO2R6666170576
Jul 23, 2025
Lucretia
Item details
Bed size: Twin
Mattress thickness: 12 in
5 out of 5 stars review

Verified Purchase

I love this mattress. I brought it for my mom so that she can sleep on the first floor because she has trouble getting up and down the steps. It's like sleeping on a cloud. It's so comfortable that I almost fell asleep on it when I was trying it out for her. Great quality is packed very well and a great price.

Incentivized Review
Helpful?4YQ7VL4QHO2R6666170576
Aug 3, 2025
Patricia
Item details
Bed size: Queen
Mattress thickness: 12 in
5 out of 5 stars review

Verified Purchase

Shipping was fast, opened box and plastic packaging and left it to expand overnight... put it on the platform base and tried it out... I didn't wake up the next morning in pain... back pain disappeared... very comfortable mattress

Incentivized Review
Helpful?4YQ7VL4QHO2R6666170576