If, like many of us, you find it difficult to decompress enough on planes and trains to get any useful sleep, the Illumy Smart Sleep Mask from Sound Oasis might be your new best travel buddy. I tried it on my nine-hour overnight Denver (DEN)–London (LHR) flight, and slept for seven hours — straight through until the flight attendant woke me for breakfast service as I’d requested.

Unlike your run-of-the-mill sleep mask, this high-tech but uber-comfy lightweight sleep mask allows you to drift away to a simulated sunset that slowly dims and awake to a blue light that conjures a bright morning sky — the same color cues NASA employs on the Space Station to help astronauts regulate their sleep in an artificial environment. Maybe I just liked the idea of my flight experience having something in common with space travel, but I slept deeply enough to not feel groggy or grumpy upon waking. I especially loved the padded edges of the mask blocked out all light and kept it from slipping around on my face.

Cool features include an app allowing you to sync with your phone and decide how long you’d like your sunrise to last, and to choose either a built-in light alarm clock, chime alarm or a silent alarm making the morning light progressively brighter until you’re fully awake. The device also has an internal clock to calculate time zone changes for you. The brightness is fully adjustable, as is the head strap — and the outer cover is removable for washing. The Illumy Smart Sleep Mask come with a charger, micro USB charge cable, programming cable and a user manual. Bonus: When not in use, it slips right back into its own zippered carrying case.