Not Sleeping? 9 Ways It Could Be Your Bedroom's Fault

In terms of comfort, it all starts with selecting the right mattress, explains Wong. "It's worth the splurge for a good mattress that's super comfortable because this is your nightly charging station," she says. "Pro tip: If you're waking up with pain that wasn't there when you went to bed, this is your first sign that it's probably time for a new mattress."

When it comes to foam and innerspring, she recommends getting whatever is comfortable for you. "Foam is good if you have a restless partner (because of its motion isolating properties), but memory foam can cause you to sleep hot," she says, also adding that soft mattresses (which can trap heat) are another culprit when it comes to nighttime overheating. Even so, she recommends disregarding trendy mattresses made with cooling gel: "It's usually a gimmick and buried too deeply in the layers to notice."

Image via Tanya Constantine/Getty