Often pregnant is incompatible with sleep. In 1997 the American Association of Sleep Disorders, proposed the existence of a new clinical entity as pregnancy associated with sleep disorders. Although most pregnant women suffer some recognized sleep problem, there is little research to determine the exact causes and consequences of this problem for both the pregnant and the future baby.
The causes of these sleep disorders appear to be the hormonal changes that occur during pregnancy. Studies have shown that increased estrogen and progesterone decreases in deep sleep, which is what allows us to rest. Has also been observed that pregnant women who slept poorly had higher levels of cortisol and melatonin lower than usual.
