Getting the right mattress size is important and some key considerations include your age and sleeping behaviour. If you are older and taller and roll around in your sleep, it would be more optimal to get a bigger bed size. Due to space constraints, you can choose to get a smaller size bed to minimise overcrowding and stress. Mattress Sizes in Singapore Single Mattress Size - 91cm (W) by 190cm (L) Super Single Mattress Size - 107cm (W) by 190cm (L) Queen Mattress Size - 152cm (W) by 190cm (L) King Mattress Size - 183cm (W) by 190cm (L) Single Bed Size Single mattress size in Singapore has a width of 91cm (36 inches) and a length of 190cm (75 inches). Single bed size is suitable for those who want to maximise space in their room and is great for kids. Super Single Bed Size Super Single mattress size in Singapore has a width of 107cm (42 inches) and a length of 190cm (75 inches). Super single bed size is perfect for taller children or single sleeping adults. Queen Bed Size Queen mattress size in Singapore has a width of 152cm (60 inches) and a length of 190cm (75 inches). Queen bed size is the most popular mattress size. It is suitable for single sleepers who require more space and also good for couples. King Bed Size King mattress size in Singapore has a width of 183cm (36 inches) and a length of 190cm (75 inches). King bed size is common for couples sleeping with kids or pets.