One of my favorite pastimes is going to bed. My ideal bedtime is between 9:30 p.m. and 10:15 p.m., and I strive to get at least eight hours of uninterrupted sleep every night.The key word there is “uninterrupted.”For over a decade, I lived in New York City — a place that famously never sleeps — and my last apartment in Williamsburg had a straight-on view of the Brooklyn-Queens Expressway, meaning I could watch headlights zoom past from the comfort of my bed.If it wasn’t the oncoming traffic keeping me awake, it was my husband, whose natural sleep schedule is closer to that of a vampire. Despite his best efforts to sneak around me at night, he’d sometimes wake me on his way to bed (usually several hours after I had already dozed off) simply by opening the door and letting the light from the hallway in.After years of trial and error, I eventually discovered that the best solution to staying asleep was also the most lo-fi. I’d throw on an eye mask, and I’d be protected from most, if not all, enemies to my most precious sleep. But I also learned that not all eye masks are equal.The free polyester eye masks from long-haul flights were okay in a pinch, but they were too scratchy for nightly use, and the thin fabric would let the light leak in along the edges.My co-workers at the time were evangelists for silk eye masks because they were supposedly more gentle on delicate under-eyes. I found this to be true when I started alternating between a couple of mulberry silk masks from direct-order bedding brands, and I loved how cool they felt on my face. But I didn’t like how the elastic bands stretched out, loosening the fit and letting more light in over time.I picked up a contoured eye mask, made of some generic foam, from a Japanese grocery store, hoping to block out the light for good—but I found the molded cups didn’t really fit on my face, and I missed the luxurious, tender caress of the silk.