Rank #8 in Best Cot Mattress 2026: 10 Ranked, One Model at Two Prices
CuddleCo Lullaby Hypo-Allergenic Cot Bed Mattress, 140x70x7cm
Price and rating as shown on Amazon when we collected them. Both change.
The CuddleCo Lullaby sits at number eight in this guide. It is a 140 x 70 x 7cm cot bed mattress with a nursery-grade foam core, a bamboo fabric cover and hypo-allergenic, anti-microbial claims, listed at £69.99 with a 4.6 rating from 72 ratings. That price is £13.82 more than the £56.17 mattress named at the top of this guide, which is listed as 15cm thick and four-layer — so here you pay more for roughly half the depth and two layers instead of four. What the Lullaby does have is a dual-purpose build: one side moisture-wicking, the reverse a waterproof training layer, plus a cover the listing says is removable and machine washable at 40 degrees Celsius.
Two of the numbers on the page do not line up. The Item Firmness Description field reads 'Plush' while the Special Features field on the same page reads 'Firm', and the product name sells it as a firm mattress. The rating histogram also adds up to 100 ratings (2 one-star, 5 two-star, 11 four-star, 82 five-star) against the 72 ratings stated elsewhere on the same listing. On size, though, the listing is consistent with itself: the measurements bullet, item thickness and item dimensions all say 7cm. Everything on this page comes from the Amazon listing, not from any testing we have carried out.
How those 72 ratings break down
An average hides its own shape. This is the spread behind the 4.6 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £69.99 |
|---|---|
| Rating | 4.6 out of 5, from 72 ratings |
| Rating histogram (as listed) | Adds up to 100 ratings (2 x 1-star, 5 x 2-star, 11 x 4-star, 82 x 5-star) against the 72 ratings stated on the same listing |
| Item Firmness Description (as listed) | Plush — the Special Features field on the same listing says Firm |
| Mattress thickness | 7 centimetres, against 15cm on the two cheaper mattresses at the top of this guide |
| Number of Layers | 2 |
| Mattress Base Compatibility (as listed) | Crib Base |
| Item Weight | 2.7 kg |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Our previous mattress sunk where our baby slept but this has remained firm yet soft and comfy for our baby”
Verified purchase“Amazing! Like that one side is waterproof to protect the mattress highly 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
How thick is the CuddleCo Lullaby cot mattress?
Every thickness field on the listing agrees on 7cm: the measurements bullet says 140 x 70 x 7cm, the Item Thickness field says 7 centimetres and Item Dimensions says 140 x 70 x 7 centimetres. That is 7cm of nursery-grade foam, against the 15cm quoted for the two cheaper mattresses at the top of this guide.
Is the CuddleCo Lullaby firm or plush?
The listing contradicts itself. The Item Firmness Description field says 'Plush', while the Special Features field on the same page says 'Firm' and the product name calls it a firm cot bed mattress. The reviews do not settle it either — one describes it as having 'remained firm yet soft'.
Why does the page show 72 ratings when the histogram adds up to 100?
Both figures are from the same listing. The rating line states 72 ratings, while the bars shown add up to 100: 2 one-star, 5 two-star, 11 four-star and 82 five-star, with no three-star bar at all. We cannot tell you which figure is correct.
What is the cover made of and how do you wash it?
The Cover Material field says bamboo fabric, and the listing's product care instruction is to wash the cover at 40 degrees Celsius. The Item Highlight field describes the cover as removable and machine washable.
Does the CuddleCo Lullaby have a waterproof side?
Yes. The first bullet describes a dual-purpose mattress with moisture wicking on one side for comfort and airflow, and a waterproof easy-clean training layer on the reverse. A review of the product also mentions that one side is waterproof to protect the mattress.
Will it fit a cot bed or a crib?
The CuddleCo Lullaby is sold as a 140 x 70cm cot bed mattress, and the measurements bullet gives 140 x 70 x 7cm. The Mattress Base Compatibility field, however, says 'Crib Base', which does not match the cot bed name or the stated size.
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