wowttrelax Foam Mattress - King
£139.99 · Foam
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wowttrelax King Size Mattress, 15cm Foam Mattress with 2 Hardness Levels, Soft and Medium-Soft, Breathable Removable Cover, Kingsize Bed Mattress in a Box (150x200x15cm)
wowttrelax King Size Mattress, 15cm Foam Mattress with 2 Hardness Levels, Soft and Medium-Soft, Breathable Removable Cover, Kingsize Bed Mattress in a Box (150x200x15cm) image 1wowttrelax King Size Mattress, 15cm Foam Mattress with 2 Hardness Levels, Soft and Medium-Soft, Breathable Removable Cover, Kingsize Bed Mattress in a Box (150x200x15cm) image 2wowttrelax King Size Mattress, 15cm Foam Mattress with 2 Hardness Levels, Soft and Medium-Soft, Breathable Removable Cover, Kingsize Bed Mattress in a Box (150x200x15cm) image 3wowttrelax King Size Mattress, 15cm Foam Mattress with 2 Hardness Levels, Soft and Medium-Soft, Breathable Removable Cover, Kingsize Bed Mattress in a Box (150x200x15cm) image 4wowttrelax King Size Mattress, 15cm Foam Mattress with 2 Hardness Levels, Soft and Medium-Soft, Breathable Removable Cover, Kingsize Bed Mattress in a Box (150x200x15cm) image 5

wowttrelax Foam Mattress - King

Foam · Soft (4/10) · King · £139.99

★★★★☆ 4.3/5 (321 reviews on Amazon)
FoamSoft
4 min read
Free Returns Amazon Prime Eligible 321 Verified Reviews
SoftFirmness
FoamType
★★★☆☆Cooling
£140Price
4.3/5Rating
KingSize

Dual-Sided Firmness Options

Why settle for one firmness level when you can have two? We've designed this mattress with a clever reversible feature that lets you flip between soft and medium-soft sides. No marketing slogans or exaggerated advertising claims here, just practical flexibility. Had a tough day at work? Choose the softer side for cloud-like comfort. Need more support for back pain? Flip it over to medium-soft. The identical fabric on both sides means you won't need to fuss with removing covers. Simply rotate the mattress, and you're done. It's personalised sleep made ridiculously easy.

Today's Price

Free delivery available. Prices may vary.

Material Specifications

Quality speaks volumes regarding what you're sleeping on every night, and we've built this mattress with 15 centimetres of high-density foam rated at 25D. This specification means you're getting durable material that won't sag prematurely. The chemical composition meets OEKO-TEX standards, ensuring no harmful substances touch your skin. The production process involves careful compression and rolling for delivery convenience.

ComponentSpecificationBenefit
Foam Density25D High-DensityLong-lasting support
Thickness15 centimetresAdequate cushioning
CertificationOEKO-TEXChemical safety
Cover MaterialFlame Resistant FabricAdded protection
Today's Price

Free delivery available. Prices may vary.

After sleeping on the Wowttrelax for several weeks, we've gathered our honest thoughts about what makes this mattress stand out and where it falls short. Every product has its strengths and weaknesses, and we're here to break down both sides so you can decide if this pink king-size mattress fits your needs. Let's start with what impressed us most, then we'll tackle the areas that could use some improvement.

During testing the Wowttrelax King Size Mattress, we found ourselves genuinely impressed by its dual-firmness design, a feature that's not just a gimmick but actually delivers on its promise. Here's what stood out:

The combination of customised firmness and practical features makes this mattress genuinely worth considering.

No mattress is perfect, and although the Wowttrelax impressed us in many ways, we'd be doing you a disservice if we didn't point out where it falls short.

Here's what gave us pause:

These aren't dealbreakers, but they're worth considering before you commit.

Pros and Cons

What We Loved

  1. Versatile comfort*: Flip between soft feel and medium-soft based on your preference
  2. Excellent value: High-density foam* provides great support without breaking the bank
  3. Convenient packaging: Mattress-in-a-box* setup makes delivery and installation hassle-free
  4. Easy maintenance: Removable, washable cover* keeps things fresh

Areas for Improvement

  1. Pricing transparency* could be clearer; we struggled to find consistent cost information
  2. Some customers reported shipping delays extending beyond expected delivery windows
  3. The 48–72 hour expansion time requires patience we don't always have
  4. At 15 cm thick, it's thinner than premium options, potentially limiting long-term durability

Final Verdict

The Wowttrelax King Size Mattress delivers solid value for shoppers seeking an affordable, versatile sleep solution. Its dual-firmness design lets you customise comfort without buying two mattresses, which reflects smart pricing strategy. The breathable, OEKO-TEX certified cover addresses safety concerns yet remaining easy to maintain. We appreciate the mattress-in-a-box convenience, though you'll need patience during the 48–72 hour expansion period. If you encounter issues, reliable customer service backs your purchase. For budget-conscious buyers who prioritise flexibility and decent quality over premium features, this mattress checks key boxes. It's a practical choice that won't disappoint most sleepers.

Our Score Breakdown

How this mattress performs across key sleep categories.

Overall Score

74out of 100
Comfort70%
Support70%
Temperature60%
Value95%

Best For

Side Sleepers

The softer feel cradles shoulders and hips.

Independent Reviews
Honest, unbiased analysis
UK-Based Team
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