In most cases, two people can sleep comfortably on a queen size bed. The additional width of a queen offers 30 inches of personal space to each sleeper—this is 3 inches more per side than a full bed. The extra length can also accommodate taller individuals. Many single adults also prefer a queen bed since it offers more room to spread out without worrying about rolling off the mattress’s edge. If you are an active sleeper, a queen may be the best choice for you.