Poor sleep may make many of the symptoms of depression
worse, causing a lack of energy, irritability in the morning and late
in the day, headaches due to tension and anxiety, and poor
concentration

You may also have difficulty driving or operating machinery. It is
important to treat sleep problems seriously and to seek advice
from a doctor who understands that the sleep problem may be
due to depression.

After having had a bad night’s sleep some people try to ‘catch up’
by sleeping during the day. Sleeping at irregular times can further
disturb your circadian rhythm (bodyclock) so it is important to
keep to a regular bedtime routine.

So it is better to avoid the reasons causes which disturb your sleep habits,isn't it?