Why Is My Hamster Suddenly So Hyper at Night?

Hamster running fast on wheel during nighttime activity

Many hamster owners become concerned when their normally calm pet suddenly starts running nonstop, climbing the cage, digging frantically, or racing on the wheel for hours after dark. For many owners, sudden nighttime energy can feel surprising or even concerning at first. In most cases, a hyper hamster at night is completely normal. Hamsters are …

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