Frequent awakenings to urinate which cause interrupted sleep. Interrupted sleep means daytime sleepiness. The good news is that this allows for a better quality sleep than during the 1st trimester. The fetus has moved and is now putting less pressure on the bladder so there are less nightly bathroom breaks. However, sleep quality is still not what is was before pregnancy.
Most pregnancy related problems happen now.
Physical discomfort disturbs sleep most. Heartburn, leg cramps, and sinus congestion increase and can be major sleep disturbance perpetrators. Here comes that pressure back on the bladder again. Increase risk for snoring and sleep apnea due to narrowing of upper airway with weight gain. In the third trimester, sleep on your left side to allow for the best blood flow to the fetus and to your uterus and kidneys.