TH Size.

Dimension
Super Single + Super Single (7ft) 84″ x 78″ 
Queen + Single (8ft) 96″ x 78″
Queen + Super Single (8.5ft) 102″ x 78″
King + Single (9ft) 108″ x 78″
King + Super Single (9.5ft) 114″ x 78″
Queen + Queen (10ft) 120″ x 78″
Queen + King (11ft) 132″ x 78″
King+ King (12ft) 144″ x 78″

US Size.

Dimension
Twin+Double 92″ x 75″
Double x 2 108″ x 75″
Twin XL+Queen 98″ x 80″
Twin XL+King 114″ x 80″
Queen x 2 120″ x 80″
Queen + King 136″ x 80″
King x 2 152″ x 80″

UK Size.

Dimension
SmallSing 29″ x 75″
Single 95″ x 75″
Small Double 47″ x 75″
Double 53″ x 75″
King 59″ x 78″
Supr King 71″ x 78″
Emperor 78″ x 78″

EU/IKEA Size.

Dimension
Single 35″ x 79″
Double 55″ x 79″
King 63″ x 79″
Grand King 71″ x 79″
Super King 79″ x 79″

TH Size.

Dimension
Super Single + Super Single (7ft) 214 X 198 cm.
Queen + Single (8ft) 214 X 198 cm.
Queen + Super Single (8.5ft) 259 X 198 cm.
King + Single (9ft) 273 X 198 cm.
King + Super Single (9.5ft) 273 X 198 cm.
Queen + Queen (10ft) 304 X 198 cm.
Queen + King (11ft) 335 X 198 cm.
King+ King (12ft) 366 X 198 cm.

US Size.

Dimension
Twin+Double 234 X 191 cm.
Double x 2 274 X 191 cm.
Twin XL+Queen 249 X 204 cm.
Twin XL+King 290 X 204 cm.
Queen x 2 290 X 204 cm.
Queen + King 305 X 204 cm.
King x 2 386 X 204 cm.

UK Size.

Dimension
SmallSing 75 X 190 cm.
Single 90 X 190 cm.
Small Double 120 X 190 cm.
Double 135 X 190 cm.
King 150 X 200 cm.
Supr King 180 X 200 cm.
Emperor 200 X 200 cm.

EU/IKEA Size.

Dimension
Single 90 X 200 cm.
Double 140 X 200 cm.
King 160 X 200 cm.
Grand King 180 X 200 cm.
Super King 200 X 200 cm.