Size Guide for Nigerian Mattresses, Mattress Toppers and Protectors
| Size Name | Dimension in CM (W x L) | Dimension in Ft (W x L) |
| Twin | 91 x 190 | 3 x 6 |
| Twin XL | 107 x 190 | 3.5 x 6 |
| Full | 122 x 190 | 4 x 6 |
| Full XL | 137 x 190 | 4.5 x 6 |
| Queen | 152 x 190 | 5 x 6 |
| King | 183 x 190 | 6 x 6.3 |
| UK King | 180 x 200 | 6 x 6.5 |
| European King | 200 x 200 | 6.5 x 6.5 |
| US King | 193 x 203 | 6.4 x 6.8 |
| California King | 213 x 190 | 7 x 6.3 |
| Grand King | 213 x 213 | 7 x 7 |