Sugar gliders are social animals and are happiest when living with at least one other sugar glider. However, some single sugar gliders that are raised with a lot of attention and handling from trusted humans can be happy.
If you only have one sugar glider, handle it every night and provide it with environmental stimulation in the form of perches and toys.
When kept in groups of two or more, sugar gliders cuddle while sleeping, and groom and play with each other. Bring home multiple sugar gliders at the same time to reduce the likelihood of dominance or jealousy issues. If you have multiple sugar gliders, handle each of them daily to keep them tame.
Males should be neutered to avoid sexual frustration and self-mutilation behaviors. Unaltered male sugar gliders can also have a strong odor.