Explanation: The girl went to bed with her clothes on at night, but woke up the next morning with her clothes blown up

The unusual situation here is that the girl went to bed fully dressed, but by the next morning, her clothes had somehow shifted or "blown up." This could be due to several reasons:

Restless Sleep
If she moved a lot during the night, such as tossing and turning, her clothes might have ridden up or shifted naturally. This is common with loose or ill-fitted garments.

Fabric Type
Certain materials, like satin or slippery fabrics, are more likely to move out of place as the body shifts against bedding during sleep.

Environmental Factors
External conditions, like a fan or breeze, might have contributed to her clothes being disturbed if they were lightweight.

Unconscious Behavior
People sometimes adjust their clothing while sleeping without being aware of it. This might explain how her attire ended up in a different position by morning.

Such occurrences, while puzzling, are generally harmless and a result of normal nighttime movements or external factors.