Papo SnailPapo Snail Papo model 50262 Product Dimensions: 6 x 1. 8 x 3. 2 cm Age: 3 years and up Did you know that snails can sleep for up to 3 years? That's right, snails are known for their ability to hibernate for extended periods of time when environmental conditions become unfavorable. During hibernation, snails retreat into their shells and reduce their metabolic activity to conserve energy. So, the next time you come across a snail, remember that it