Actually I do not know correct answer, sources I have been reading in the past, didnt spill any light on this (quite a special, I admit!) question. But animals do sleep not like us, humans, their sleep (generally) is shorter and more discrete, and sometimes its a half-sleep or even quarter-sleep, or just some sleepy condition (whatever this mean).
Here go a few macros from tonight's evening shoot (I added a bit more light processing the .raws, and I used a long exposure -- but you can rely on my words, it was an evening, not any other part of the day!).
So, what is so special with this common well-spread land grape snail? It curved its head and put it upon the shell, and it really, really looked very relaxed, like it is having a rest from all day works. A sleep, or half-sleep, but it wasnt moving anywhere, just rested and -- I thought it maybe A Sleep? Of course, if the snails do sleep at all.
Now, after sharing those pics, I have educated myself (which is another very nice side of blogging about wild nature!). Quick google search for this specific question, brought me to the answer: yes, the snails do sleep, like any other animals!
Snails can sleep in both day and night time. (Some snails species are mainly nocturnal animals, during the daytime they sleep and save energy for night activity). Normally, snails sleep about 25% of the time, but under favorable conditions, they can sleep 30-40% of the day. When conditions unacceptable, for example, one need to wait out the drought, some snails hibernate (up to 2-3 years, as I've read).
Улитки могут спать и днем, и ночью. (Некоторые виды улиток преимущественно ночные животные, тогда они днем спят и копят энергию для ночной активности). Обычно, они спят примерно 25% времени, но при благоприятных условиях, могут спать 30-40% дня. Когда вокруг неприемлемые условия, например, нужно пережидать засуху, некоторые улитки впадают в спячку (вплоть до пары лет).
Considering this answer to my sudden curiocity may be of intrest to all wild nature lovers, I am adding the post to #AmazingNature contest by 
| location: | Russian countryside | June 2020 | natural lighting |
| camera/lens: | Canon 350D | Tamron 60mm | raw-conv |
| f 2.5 | t 1/25 | ISO 400 |
As a bonus, one more image: we spent 4 or maybe more hours in a company with this unidentified (yet) nice insect. Can you believe it?! From the start we very careful and hold our breating, considering it can take off in every second, but later understand that it is not going anyway -- maybe it was injured, or too frozen, or just finished its life cycle... I really dont know the right answer to this riddle! But at least I used the time for getting some macro shots. Unfortunately, I have some decent sun light glimpses only in the end of the session, so the slender evening light didnt give me too much chances for excellence...anyway. Enjoy the little preview teaser, the rest will follow soon.
Thanks for stopping by!
