Rank #6 in Best Cot Mattress 2026: 10 Ranked, One Model at Two Prices
Opulent Home Cot Bed Mattress, 140x70x15cm, Waterproof
Price and rating as shown on Amazon when we collected them. Both change.
Opulent Home's cot bed mattress is listed at £46.74 in a 140 x 70 x 15 cm size — 43p below the cheaper of the two identical MHG-COT-MATTRESS listings higher up this guide. It is described as a four-layer, thermal-bonded fibre mattress with a zipped, machine-washable polyester cover and a built-in PU waterproof membrane, rated 4.2 out of 5 from 126 ratings. Its own model number is OTH-COTBED-MATTRESS, not the model number the twins share, so this is a separate listing rather than a third price for the same mattress.
The number that does not close here is the star breakdown. The page's own rows — 72 five-star, 7 four-star, 5 three-star and 16 one-star — come to 100 ratings, while the headline figure is 126. On the rows shown, about one rating in six is a single star, which is worth knowing alongside an average of 4.2. The firmness fields are split too: the bullets promise 'consistent, firm support' and the spec table answers 'Medium'. Everything on this page is taken from the Amazon listing as it stands, not from a mattress we have slept on or tested.
How those 126 ratings break down
An average hides its own shape. This is the spread behind the 4.2 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £46.74 |
|---|---|
| Rating | 4.2 out of 5 from 126 ratings |
| Star breakdown (as listed) | 72 five-star, 7 four-star, 5 three-star, 16 one-star — the rows total 100, not 126 |
| Size | 140 x 70 x 15 cm |
| Thickness (as listed) | 15 cm in four separate fields — Item Thickness, Item Depth, Size and Item Dimensions |
| Firmness (as listed) | Medium, while the bullets say 'consistent, firm support' |
| Number of layers | 4 |
| Model number | OTH-COTBED-MATTRESS |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Very thick . Great for my toddler”
Verified purchase“Fast delivery, firm mattress, excellent value for money. After comparing lots and reading countless reviews I chose this one and I'm glad I did. Would recommend”
What it is up against
The rivals it was ranked against in Best Cot Mattress 2026: 10 Ranked, One Model at Two Prices.
Questions people ask
Is the Opulent Home cot bed mattress really 15cm thick?
The listing gives 15 cm in four separate fields — Item Thickness, Item Depth, Size and Item Dimensions — and no other thickness figure appears anywhere on the page.
How firm is it?
The bullets promise 'consistent, firm support', but the Item Firmness Description field says Medium. The listing does not reconcile the two.
Will it fit a standard cot bed?
It is listed at 140 x 70 x 15 cm, the same footprint as the two MHG-COT-MATTRESS listings in this guide, but it carries its own model number, OTH-COTBED-MATTRESS, so it is not the same listing at a third price.
Why is the rating 4.2 when most of the ratings are five-star?
The breakdown on the page accounts for 100 ratings rather than the 126 in the headline figure, and 16 of those 100 rows are one-star.
Can the cover be washed?
Yes. The cover is zipped and removable, the product care instruction is Machine Wash, and the cover material is listed as polyester.
Can I use it straight out of the box?
Yes, with a caveat: the listing says it arrives compressed and roll-packed and needs 48–72 hours to return to its normal shape, though it can be used while it recovers.
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