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Product guide

5 STARS UNITED Ergonomic Seat Cushion, Large Memory Foam

The 5 STARS UNITED Ergonomic Seat Cushion is a large memory-foam sitting pad with a removable cover and non-slip base. Its listed 46 × 36 cm footprint and 7.5 cm height suit buyers seeking extra cushioning on a desk or office chair, but fit should be checked against the seat before purchase.

At a glance

  • U-shaped design is described as relieving pressure around the tailbone during sitting.
  • Memory-foam core is listed as medium firmness, with a 7.5 cm cushion height claimed in the feature text.
  • Removable cover, non-slip underside and built-in carry handle are listed features.
  • Maker recommends measuring the chair and gives a suggested user weight of around 70–100 kg.
Price
£26.31Save 15%

Reference price: £30.95

Price checked: 12 Nov 2026

View offerAhead of Black FridayExplore the selection

Pros and cons

Pros

  • Removable cover can be machine-washed in cold water, while the foam core stays unwashed.
  • Carry handle supports moving the cushion between seats.
  • Large listed footprint is intended for standard chairs and some wheelchairs.

Cons

  • The foam core cannot be washed, so cleaning is limited to the removable cover.

Technical specifications

14 specifications
Identity
Brand5 STARS UNITED
ModelErgonomic Seat Cushion
SizeLarge
ColourDark Gray
Materials and construction
Material listedMemory Foam
FirmnessMedium
ShapeSemicircular
FeaturesMemory Foam Core, Breathable & Removable Cover, Non-Slip Base, Built-In Carry Handle
Dimensions and use
Dimensions (L × W)36L x 46W centimetres
Recommended useSitting
Age rangeAdult
Pieces1
Latex statusLatex Free
Care
Care instructionsFoam core is not washable. Cover is machine washable in cold water. Do not bleach, tumble dry, or iron. Air dry only

What to know before buying

Listing details to confirm

The feature text gives dimensions as 46 × 36 × 7.5 cm, while the details table lists only 36L x 46W centimetres. The same listing describes firmness as both medium and medium-firm, and labels the shape both U-shaped and semicircular. Confirm the exact version and fit before buying. The suggested user weight is around 70–100 kg, and the maker advises measuring the chair.

Who is it for?

A good fit for

  • People wanting an extra memory-foam layer on a desk, office or dining chair.
  • Drivers or wheelchair users looking for a cushion that can be moved between seats, if its dimensions fit.
  • Adults who prefer a medium or medium-firm seat cushion and can follow the cover-only washing instructions.

Less suited to

  • Buyers needing a washable foam core or a cushion with an unambiguous shape and firmness specification.
  • Anyone whose chair is narrower or otherwise incompatible with the stated footprint.
5 STARS UNITED Ergonomic Seat Cushion, Large Memory Foam · photo 2
Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 35,248 ratings
  • 5 stars64%64%
  • 4 stars20%20%
  • 3 stars9%9%
  • 2 stars4%4%
  • 1 star3%3%

Customer feedback highlights comfort, cushioning, support and perceived tailbone relief, while also describing mixed firmness and stability experiences. Some report that the cushion feels too firm or slides on their chair despite the listed non-slip base. In practice, fit and feel may depend on the seat and the buyer’s preference, so the dimensions and reported firmness differences matter. Aggregate ratings are generally favourable but do not establish how it will feel on a particular chair.

Positive themes

  • Customers report comfort, support and cushioning, and some describe relief from tailbone discomfort.
  • Some customers consider the cushion worth the money.

Negative themes

  • Some customers report that it slides off their chairs.

Mixed feedback

  • Firmness feedback varies, with some finding it too firm.
  • Stability feedback varies despite the listed non-slip base.

Frequently asked questions

What are the listed cushion dimensions?

The details table lists 36L x 46W centimetres. Feature text additionally gives a height of 7.5 cm and describes the footprint as 46 × 36 cm, so measure your seat and check the selected listing.

Can the entire cushion be washed?

No. The care instructions say the foam core is not washable. The cover can be machine-washed in cold water and should be air-dried. Do not bleach, tumble dry or iron it.

How firm is the cushion?

The details field calls it medium, while the feature text describes a medium-firm feel. Customer feedback also reports mixed opinions, including that some find it too firm.

Does it stay in place on every chair?

A non-slip base is listed, but customer feedback is mixed on stability, with some reporting that it slides on their chairs.

5 STARS UNITED Ergonomic Seat Cushion, Large Memory Foam · photo 3
Additional product photo 3

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