Ok, I see. But I still don’t see why we need to sleep that much. It must have some other benefit then, and it cannot only be saving resources, as then babies should be able to trade sleep for food, no?
I checked, and it seems that land mammals’ babies also sleep more than gown ups, which would imply that learning slower than other species is probably not the reason why babies sleep that much. Interestingly, marine mammals’ babies seem to sleep less than grown ups.
Ok, I see. But I still don’t see why we need to sleep that much. It must have some other benefit then, and it cannot only be saving resources, as then babies should be able to trade sleep for food, no?
I checked, and it seems that land mammals’ babies also sleep more than gown ups, which would imply that learning slower than other species is probably not the reason why babies sleep that much. Interestingly, marine mammals’ babies seem to sleep less than grown ups.