It is a normal phenomenon for hamsters to sleep every day. Hamsters are nocturnal animals. They usually sleep during the day and are active at night. Therefore, it is normal to see hamsters sleeping for most of the day. Hamsters have a long sleeping time and may sleep for more than a dozen hours a day.

The Sleeping Habits and Behaviors of Hamsters
Nocturnal: Hamsters are nocturnal animals. They sleep during the day and are active at night. They are most active from 7 p.m. to 10 p.m.
Sleeping Time: Hamsters can sleep for about 14 hours a day, and they spend most of their time sleeping.
Sleep Cycle: The sleep cycle of hamsters is short. They only sleep for about 11 and a half minutes at a time, but they can cycle 75 times a day.
Reasons Why Hamsters Sleep Every Day
Habit: Hamsters sleep during the day to avoid natural enemies and rest, and they come out to forage and be active at night.
Environmental Temperature: Hamsters are very sensitive to the temperature. Both too high and too low temperatures will affect their health. In winter, warm-keeping measures need to be provided, such as laying cotton or using warm clothes.
Health Condition: If a hamster keeps sleeping and has a poor appetite, it may be ill. It is necessary to take it to a pet hospital for examination and treatment in a timely manner.
How to Judge Whether a Hamster is Healthy
Observe Activity: If a hamster is not active even at night, it may be ill. Observe whether its tail is wet. If it has enteritis, it needs to be treated as soon as possible.
Environmental Temperature: Ensure that the living environment temperature of the hamster is appropriate, and avoid it being too hot or too cold.
Food and Water: Ensure that there is enough food and water in the food bowl to prevent the hamster from having problems due to hunger or dehydration.