2. Tight or heavy pajamas

As you’ve probably figured out, tight clothes do not favor sleep. That’s because tight clothing items can disrupt circulation in your body and airflow, cautions James Oliver, lead researcher, sleep expert, and founder at Hey Mattress. Not to mention, it’s really uncomfortable.

In addition, tight or heavy pajamas can make your body temperature go up during sleep, causing you to wake up too often and sleep poorly. According to Jill Zwarensteyn, a certified sleep science coach and the editor at Sleep Advisor, flannel or fleece pajamas are not recommended as sleep attires.

Speaking of tight, are you Feeling Tightness in Your Throat? 5 Alarming Symptoms and How You Can Manage Them.