How Do The Fish Sleep?

I am an animal person. I specially love dogs but with two kids and great grandmother. I can’t take responsibility of one more baby. As they also need proper care and have lot of responsibilities. I have thought of having a dog but not now, Until my kids grow.
Every time I go to my mom’s house Aquarium with fishes and tortoise fascinate me. In this summer vacation I bought one Aquarium. My daughter was very fond of fishes and take care of them very well. She has taken responsibility of feeding them. She brought out a brain storming question – How do the fish sleep?

Tell me how many know the answer of this?

How do the fish sleep?

How do fish sleep

Fish are living beings that still fascinate people today because of their strange customs. One of them is his way of sleeping. You know that life is originated in the sea, so rare that it should be you. Have you ever wondered how the fish sleep? Well, in this article you are explained how fish sleeps.

Do fish sleep like people?

If the question that concerns you is whether the fish sleep the same way as you do or not, we’re going to explain that, like human beings, these vertebrate beings need adequate sleep. As fish do not have eyelids and their eyes are moist, it is consider that they do not sleep, however they do so in order to protect themselves and conserve their energy. The fish have a membrane that covers their eyes, preventing the dim light of the night from disturbing their “sleep”.

The dream of the fish:

How do fish sleep

The fish never close their eyes and this is only due to an anatomical feature, since they do not have eyelids. All animals, from unicellular organisms to more evolved ones like humans, need to sleep. This is the moment of neuronal rest in which the energies are charged to be able to continue with the day to day. Therefore, fish are not less and also sleep, but in a very different way than humans. In most fish, your rest consists of stopping swimming and reducing your physical and metabolic activity, staying in some corner, between the rocks or in more sheltered areas dozing. It is more a state of rest than a deep sleep like that of humans. But it has the same result.

Each fish has its technique to sleep:

Some fish rest by putting their rear or bottom fin on the seabed as an anchor so they cannot be washed away by the marine current. Others make strange noises to scare away possible predators (as in the case of the snoring fish). Another technique of rest that some fish use is to let themselves fall on the seabed and thanks to their swim bladder to be able to raise to breathe and return to descend to the bottom without waking up (yes, although it sounds incredible).

In the case of dolphins and whales (mammals) they can use two techniques, depending on whether they are accompanied or go alone. In case of going alone, they will stay still as if they were a trunk; and in case of being accompanied, one of them will act as a guide and the others will swim slowly with him.

In the case of sharks, having no swim bladder, they will not be able to go up and down to breathe, so they will have to be in constant movement to be able to breathe (thanks to the gills and oxygen in the sea). If a shark stops, it runs the risk of going to the bottom and dying. Therefore, as a conclusion, it can be said that the fish do sleep, but each one does it their own way.


July 25, 2019

26 Replies to “How Do The Fish Sleep?”

  1. Rohit Verma says: September 7, 2019 at 1:36 pm

    Wow! How does one define sleep though?

  2. [email protected] says: September 7, 2019 at 1:02 pm

    Last month we bought a fishbowl, and this query was asked by my kids daily.
    glad to read this, now I can ask them to read your post with detailed info. An interesting and informative read.

  3. Amrit kaur says: July 31, 2019 at 4:59 am

    I got to know about this information when I was writing a book on fish. Fish are an amazing creature. Great information that you have shared here.

  4. Ekta Chawla says: July 31, 2019 at 4:47 am

    You have touched upon such a unique topic… we all wonder how fishes sleep in water.. this is nature’s own unique way to help every creature exist and co-exist beautifully maintaining the gentle balance of the eco system.

  5. Prakhar Kasera says: July 30, 2019 at 10:02 pm

    Well that’s something I don’t read daily…it’s nice to come across something like this…so different and informative…such an interesting blog it is…i think it’s a good read for kids too…will share it with a few

  6. Judy says: July 30, 2019 at 4:53 pm

    Oh I didnt know about fishes but I am a fish lover.. they are a perfect companion and so adorable. Thanks for this article

  7. Khushboo says: July 30, 2019 at 3:08 pm

    Thats a intersesting post very different to read. I didnt know about fish sleep. I would love to sleep like fish too.

  8. Seema Wadhwa says: July 30, 2019 at 3:02 pm

    I love how you’ve chosen to address questions that have definitely crossed our minds at one point or the other. I’ve always wondered how do fishes sleep. This was an insightful read.

  9. Mrinal Kiran says: July 30, 2019 at 2:58 pm

    Wow! I never knew how fishes sleep and this question never came my head.. But reading this post, I am amazed!

  10. Amrita says: July 30, 2019 at 2:01 pm

    This is one question that I too had in my childhood. It was really interesting to read all these facts. I am sure your daughter will have many more such interesting questions! 🙂

  11. Rakhi Parsai says: July 30, 2019 at 1:49 pm

    This is such a unique and insightful post around fish and their sleep pattern. Indeed our earth has so many animals and it’s amazing to know about this cute looking amphibian.

  12. Siddhi Palande says: July 30, 2019 at 1:45 pm

    This happened with me in a mall. My husband saw a gold fish in the corner of the fish tank, not moving at all. He thought it was dead but I told him it is is sleeping and he wouldn’t believe me

  13. Deepa says: July 30, 2019 at 1:38 pm

    Oh wow! Interesting post and I had no idea about it. I will share the facts with my daughter too.

  14. Jhilmil says: July 30, 2019 at 12:49 pm

    This question my kid asked me few days back and I was trying to avoid it by silly gestures 🙂 .. It’s time to respond back .

  15. Snehal says: July 30, 2019 at 12:05 pm

    Lol i have been wondering about this for a really long time. We have a few pet fishes at home. You have solved my doubts!

  16. Pamela Mukherjee says: July 30, 2019 at 11:03 am

    Very informative and interesting post. The way you described its so good. Thank you

  17. Sandy N Vyjay says: July 30, 2019 at 6:37 am

    This is an interesting topic that you have discussed. One would have thought that fish never sleep, but you have blown the myth with facts. Fishes indeed are fascinating creatures and one can watch them for hours.

    1. Dr.Amrita Basu says: September 8, 2019 at 3:15 am

      This is such a cute article idea.I wonder what my daughter will say about fishy sleep

  18. Noor Anand Chawla says: July 30, 2019 at 2:52 am

    How interesting, Gurjeet! Honestly I have never thought about this. I am glad to have learnt something new today!

  19. Rahul Prabhakar says: July 29, 2019 at 6:27 pm

    I had so many questions in my head wrt fish sleep. Your post provided a good insight. Thank you so much.

  20. Nisha says: July 29, 2019 at 5:10 pm

    This is one of the most interesting thing that I have read on the internet today. I dig these kind of unique articles. I think I am going to narrate this to my son. He is going to love it.

  21. Pooja budhiraja says: July 29, 2019 at 2:38 pm

    It’s so nice to read about fishes and their sleep pattern in so much detail. Thanks to yr daughter who brought this topic for you to write

  22. Nitya says: July 29, 2019 at 2:09 pm

    I had an intense love for water animals and this post made me know about their nature and behaviour! Loved it 🙂

  23. Jenifer says: July 29, 2019 at 12:51 pm

    Is that fish from your aquarium?

    Btw I didn’t know much about how do the fish sleep, it was great to know this info.

  24. Manisha Garg says: July 28, 2019 at 7:20 pm

    I have wondered about it too and thanks for solving my query too. Nature and it’s ways are just so fascinating. I love to observe fishes now I know when they are in a corner they are taking some needed rest.

  25. Anahita Irani says: July 28, 2019 at 3:52 pm

    Such an interesting read. Some facts just got cleared in my head.

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