National Sleepy Head Day is observed on July 27, 2026. National Sleepy Head Day is celebrated in Finland every year. Traditionally on this day, the last person in the house to wake up is woken up using water, either by being thrown into a lake or the sea, or by having water thrown on them.
We have placed a detailed description of this event on this page: National Sleepy Head Day 2025. For further information please stop by there!
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