Cramped quarters can turn sleeping into a nightly wrestling match. A healthy person moves anywhere from 40-60 times a night, including dozens of full body turns. You need freedom of motion while you sleep and to help you relax while getting to sleep. Make sure that your mattress gives you room to move around comfortably throughout the night.
Two people sleeping on a full sized (‘double’) mattress only have as much personal sleeping space as a baby in a crib. It is recommended that bed partners buy a mattress no smaller than a queen mattress.
California King 72” x 84”
King 76” x 80”
Queen 60” x 80”
Full (Double) 53” x 75”
Twin 38” x 75”
Deciding between a queen or king size mattress really boils down to personal choice. A queen bed is 60 inches wide by approximately 80 inches long, perfect for couples who prefer close quarters. King beds are 76 inches wide by 80 inches long, the best choice for couples that want maximum personal sleeping space. Both twin and full sizes are approximately 75 inches long, which may be too short for some adults,
especially men. Full size allows only enough space for a single sleeper
shorter than 5 feet 5 inches tall.