The Vortex Vaults Shelter beds will come in three heights. The 57” height is tall enough to sit comfortably in a chair, it comes in full, queen and king sizes. The 38” height is tall enough to sit comfortably on the floor with a bean bag or similar style chair, it comes in twin, full, queen, and king. The 19” shelter does not raise and lower like the others and it is available in twin, full, queen, and king. The bigger the bed size, the more available space inside the vault to fit more people.