While letting natural light flood your bedroom might brighten your day, it can also be a little inconvenient to have constant sunbeams coming in through the windows. Whether it’s a pesky glare on your ...

We all know that darkening a bedroom can help us sleep better. It’s instinctive. But how dark is dark enough? The answer, it turns out, is very dark. Phyllis Zee, a professor of neurology and sleep ...