are twin and double the same?
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Both terms refer to mattresses measuring 54 inches by 75 inches. Though the word “double” would suggest that a full or double bed is twice the size of a twin/single mattress, that's not the case. A full mattress is 15” wider than a twin bed, but the same length.
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The Science of Identical Triplets and Quadruplets. ... Identical siblings are much more rare: Only about one in 250 births is identical twins, according to a 2003 study in the Journal of Biosocial Science. Identical triplets are even less common, occurring about 20 to 30 times per 1 million births, the study found.
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Double/Full beds are 15" wider than a twin, but if two share the bed, each has only 27" of personal space—much less than a twin! ... Double beds (also known as full) were the most common for two to sleep in until the 1960s. They're only 15" wider than a single bed, leaving only 27" of sleep space for each of two adults.
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A double bed and a full size mattress have the same dimensions, 54 inches by 75 inches. ... In fact, the terms “double bed” and “full size mattress”, are often used interchangeably. If you refer to mattress sizes, both “double” and “full” are the exact same.
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Do two twins make a queen mattress? No, putting two twins together would be 16 inches wider and 5 inches shorter than a queen mattress. However, putting two twins XLs together are the size of a king mattress, 76 inches by 80 inches.
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A double bed is a bed large enough for two adults. ... These are referred to as "twin beds" because there were two of them and they were identical. Mattresses for such beds are 38 inches wide. Though it is not strictly correct, beds for children are often called "twin beds" because they take a mattress of the same size.
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In fact, the terms “double bed” and “full size mattress”, are often used… A double bed and a full size mattress have the same dimensions, 54 inches by 75 inches. ... Twin mattresses became the standard size for a single bed, while full mattresses became the standard size for a double bed in the United States.
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A standard twin bed is 39 inches wide and 75 inches long; a standard king bed is 76 inches wide and 80 inches long. Therefore two twin beds are not quite equal to a standard king bed. However, two Twin XL are equal to a king.
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Summary: A Double or Full is 53 inches wide and 75 inches long. Contrary to popular belief, a Double or Full bed is only 15 inches wider than a single, not double. Double beds are best for the single sleeper who wants more width than a Twin but doesn't need as much length.
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They'll list “identical” ”non-identical” or “mirror image” when completing forms. However, mirror imaging is simply an example of identical twinning. Identical twins do not have to be identical in every way –and can in fact exhibit more differences as they age.
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Twin rooms have two beds. ... Double room means, a room has only one bed comfortable for 2 persons. Twin room means, a room has two beds; each person has one bed.
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​Identical Twins Identical twins are also known as monozygotic twins. They result from the fertilization of a single egg that splits in two. Identical twins share all of their genes and are always of the same sex.
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A set of identical twins and fraternal twins is only around 1 in 10,000, or the same odds that you're going to fall off your toilet and end up in hospital! Having two sets of identical twins is pretty damn unlikely, with only 1 chance in 70,000.
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A double bed and a full size mattress have the same dimensions, 54 inches by 75 inches. In fact, the terms “double bed” and “full size mattress”, are often used interchangeably. ... While full beds are called doubles, they can't comfortably accommodate two adult sleepers.
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Single and twin are two terms for the same bed size. There is no difference between the two, and both terms are often used interchangeably. “Single” used to be the more popular terminology, but today, “twin” is more commonly used. This is true in most countries, although some nations still prefer the term “single”.
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So identical twins are kind of like two pies made from the same recipe. They are more similar than pies made from different recipes, say apple and blueberry. But if you look closely, they are still not exactly the same. They will always have some physical differences due to differences in their environment.
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Identical twins Identical (monozygotic) twins happen when a single egg (zygote) is fertilised. The egg then divides in 2, creating identical twins who share the same genes. Identical twins are always the same sex, so if your twins are identical, you'll have 2 girls or 2 boys.