Mattress topper size guide
UK topper sizes in CM
| Mattress Topper Size UK | Topper Size UK | Mattress Size UK |
| Single Mattress Topper Size | 90 x 190cm | 90 x 190cm |
| Double Mattress Topper Size | 135 x 190cm | 135 x 190cm |
| King Size Mattress Topper Size | 150 x 200cm | 150 x 200cm |
| Super King Mattress Topper Size | 180 x 200cm | 180 x 200cm |
Confused about which size topper is right for your bed? Your mattress topper should be the same size as your mattress. Our detailed topper size guide will help you choose the correct size mattress topper for your bed and avoid the pitfalls of buying a topper that's too big or too small! We've covered UK, US, and European topper dimensions.
UK topper sizes in inches
| Mattress Topper Size UK | Topper Size UK | Mattress Size UK |
| Single Mattress Topper Size | 35.5" x 190" | 35.5" x 75" |
| Double Mattress Topper Size | 53" x 75" | 53" x 75" |
| King Size Mattress Topper Size | 59" x 79" | 59" x 79" |
| Super King Mattress Topper Size | 71" x 79" | 71" x 79" |
US topper sizes
US bedding sizes are slightly different to UK sizes, so measure your mattress first to check.
| Mattress Topper Size USA | Topper Size US | Mattress Size US |
| Twin / Twin XL Topper | 39 inches x 75 inches | 39" x 75" |
| Full / double Topper | 54 inches x 75 inches | 54" x 75" |
| Queen Size Topper | 60 inches x 80 inches | 60" x 80" |
| King Size Topper | 76 inches x 80 inches | 76" x 80" |
European topper sizes
European bedding sizes are a little larger than the UK equivalent, so make sure you measure your mattress before buying a UK topper.
| Topper Size Europe | Topper Size EU | Mattress Size EU |
| Single Topper Size | 90 x 200cm | 90 x 200cm |
| Double Topper Size | 140 x 200cm | 140 x 200cm |
| King Size Topper Size | 160 x 200cm | 160 x 200cm |
| Super King Topper Size | 180 x 200cm | 180 x 200cm |
Tips for choosing the correct size topper
Before purchasing a mattress topper, measure the dimensions of your mattress rather than measuring your bed frame, to ensure you get a proper fit. See our topper buying guide to discover the most important things to think about when choosing your topper.
Topper size chart
Should a mattress topper be bigger than my mattress?
No, a topper that is too big can move around and be uncomfortable. You don't want your topper to be wriggling around beneath you as you try to sleep!
Should a mattress topper be smaller than my mattress?
Ideally, a mattress topper should the same size as your mattress. If your topper is too small for your mattress, you risk damaging the topper by stretching it.
And finally if you need to know how to care for your topper check our our mattress topper care guide.
