What in England is called a 'double' mattress is only 4 ft 6 inches wide and, if two people are sleeping on it, it offers about the same amount of personal space as to a baby in a crib. I cannot understand why that is the standard size there as it is more than a little cramped. Here in Thailand mattresses are generally either 'Queen', 60 inches (around 152 cm) wide or 'King', 72 inches (around 183 cm) wide. If you like to sleep in close proximity then 'Queen' size is fine, if you enjoy more personal space then 'King' size is the better option.

If you want maximum personal space then you can buy 2 'Single' beds which are typically 36 inches (91 cm) or 3.5 feet (107 cm) wide in Thailand. Or, of course, have separate rooms…

Sleep tight