Common traits are easily found on most Sleepwalkers. A fully Common Sleepwalker is usually the result of a non-magic user having their first lucid dream, although magic users without much magical strength can produce common Sleepwalkers.
Uncommon traits can be found on Sleepwalkers dreamed up by apprentice magic users or those with average magical strength. These Sleepwalkers are slightly more exotic than their common counterparts.
Very Uncommon traits can be found on Sleepwalkers who were dreamed up by people with a slightly above average magical strength. Although slightly more uncommon than most, the magic of these Sleepwalkers is about the same as most others.
Rare Sleepwalkers are usually dreamed up by magic users who are extremely gifted or powerful. The appearance of these Sleepwalkers easily belies their magical strength.
Very Rare Sleepwalkers are revered as powerful familiars that can easily match a fully developed mage in strength. Only a fool would turn down a bonding with one of these magnificent specimens.
Legendary Sleepwalkers are blessed by the Dream Lords and usually exist separately of their original bonded. Legendary Sleepwalkers can live for extremely long amounts of time, and are considered sources of immense knowledge.
Illegal Sleepwalkers are born because of mistakes made during the creation process. No one is quite sure how they happen. Illegal Sleepwalkers are not welcome in Dream society, nor are they favored as familiars.
Pawpads are illegal on any Sleepwalker that is not of the DayDreamer subspecies.