Yes — cats choosing unusual sleeping spots like sinks is very common.
What seems odd to humans often makes perfect sense to cats.
Why sinks appeal to cats
Shape: Sinks provide a curved, enclosed space that feels secure.
Cool surface: Porcelain can feel refreshing, especially in warm weather.
Quiet location: Bathrooms are often calm and undisturbed.
Is sink sleeping a problem?
If your cat moves normally and sleeps in other places too, sink sleeping is usually harmless.
Reassuring takeaway
Sleeping in a sink is often just a comfort choice and is generally normal behaviour.
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