Yes they can, infact they can sleep for up to 3 years on end!
Snails don't sleep everyday but they can sleep up to 3 years in a row.
no they don't.
snails
Snails can sleep for 3-4 years without waking up. Snails can also hibernate in the winter.
3 years
Yes, in fact most snails do indeed sleep for about 3 to 4 years if they do not get awoken by any sort of thing that may alarm it or harm it.
all snails sleep in gardens because it is comfortable.
they can live up to three years
Snails like to sleep upside down, high up.
Yes, if it's too cold or hot outside, it'll curl up in its shell and possibly sleep that long.
in their shells Snails hide usually in between foliage at ground level, under rocks or planks, or anywhere that is not too hot and not too cold for them. Also where they cannot be easily seen by predators such as birds. That is why they come out into the open at night time and travel to good feeding places. They like the leaves and petals of many varieties of flowers, especially 'Cinerarias'.