A cat sleeping on its back may indicate that it has a high level of trust in its owner and feels safe. This posture usually occurs when cats feel relaxed and safe, as their bellies are a vulnerable area that is not usually easily displayed to others.

Animals are wary. Many mammals have fur all over their bodies, only their belly is the most Softness is also a major weakness of them, and the same is true for cats. Under normal circumstances, cats will sleep on their stomachs because this will hide their softest belly under their bodies to prevent enemies from harming them.