In stock 1998 Products
Posh Tag
In stock 2000 Products
Posh Tag
A UK double mattress measures 135 × 190cm (4ft 6in), and our double mattress protectors are made to that size. Both are diamond quilted in 200 thread count microfibre with a 360° stretch elastic skirt that fits mattresses up to 30cm deep.
Pick the quilted protector for comfort and everyday protection, or the quilted waterproof version when you need a liquid barrier too. Machine washable and safe to tumble dry on a low heat.
| Size | Dimensions | Imperial |
| Double (this page) | 135 × 190 cm | 4ft 6in |
| Small Double | 120 × 190 cm | 4ft |
| King | 150 × 200 cm | 5ft |
| Super King | 180 × 200 cm | 6ft |
| Single | 90 × 190 cm | 3ft |
What size is a UK double mattress?
135cm wide by 190cm long, also called 4ft 6in. If your mattress is 120cm wide, you need a small double instead.
What is the difference between a double and a small double?
A double is 135cm wide, a small double is 120cm. The 15cm difference matters — a small double protector will not fit a full double.
Will it fit a deep double mattress?
The skirt is 30cm deep and fits mattresses up to 30cm. Measure your mattress depth first.
Can I tumble dry it?
Yes, on a low heat. Do not bleach, iron or dry clean.
Should I choose quilted or waterproof?
Quilted for everyday comfort and protection; waterproof if you also need a liquid barrier.
Free UK delivery on orders over £50. See our delivery and returns pages for full details.
Single Mattress Protectors · Small Double Mattress Protectors · King Size Mattress Protectors · Super King Mattress Protectors
See the full range of Mattress Protectors, or shop Waterproof Mattress Protectors in every size.
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