yes most of the time its at night but the they can sleep at day time also(:
They don't ever sleep they swim all day
in the day and night
At noon
Sleep most of the time.
day time
they sleep and sunbake on a weekend if it is sunny and they sleep at the end of the day or they sleep whenever they r tired and they sleep if it is a rainy day
they sleep at night but only for a short time they mostly sleep through the day
It is not known what time of the day blue whales sleep. The blue whale is one of the largest and heaviest animals in the world.
Penguins do not have a regular sleep pattern. They sleep when they have the chance to, which can be any time of the day or night, but they do not usually sleep for long periods of time.
a nap
A one-month-old averages out needing 15 ½ hours of sleep at night and day time; i.e.8 ½ hours of night time sleep and 7 hours of day time sleep, broken up into three naps.