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Illustration of a typical mattress topper — not a photo of this product.

Dormeo Mattress toppers

Octasmart Essentials Mattress Topper

Memory foam + supportive foam (Octacell)

Maker's firmness
Plush or firmer feel
Sizes
Single, Double, King, Super king
Depth
5cm
Guarantee
8-year warranty (Dormeo's specification table)*

* As stated on the maker's UK website on 3 October 2026, for buying direct from them. Other retailers may offer different terms — check before you buy.

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About it

A 5cm memory foam topper from Dormeo that can be used for a plusher or a firmer feel. A budget way to change the feel of a mattress that is still in good shape.

Key features from the maker

  • 5cm deep
  • Choice of plush or firmer feel
  • Memory foam with Octacell technology
  • Delivered rolled

Sizes, drawn to scale

Mattress sizes drawn to the same scale: Single 90 by 190cm; Double 135 by 190cm; King 150 by 200cm; Super king 180 by 200cm050100150200Single90 × 190cmDouble135 × 190cmKing150 × 200cmSuper king180 × 200cm
Drawn to the same scale, seen from above with the head of the bed at the top. Ruler in centimetres.

UK and EU mattress sizes explained — always check the measurements of your bed frame.

Where these details come from

Checked on against:

Makers change their products. If something here looks out of date, please let us know.

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Related guide: How long does a mattress last — and how to make it last longer