Human-subject studies conducted at Stanford Sleep Center using millisecond light pulses on hundreds of participants have not shown any known negative side effects to this point. Lumos Smart Sleep Mask is designed to mimic the light programs used in the Stanford studies. So far, only about 5% of our users have reported sleep disruptions from the lights, and 1-2% reported other possible side effects, all of which are minor.

Additionally, the light intensity from Lumos Smart Sleep Mask is orders of magnitude lower than the intensity of light a human eye will be exposed to during normal activities on a typical sunny day. The pulse frequency is orders of magnitude less than the frequency that can induce seizure and epilepsy.

Despite the safety evidence from lab studies, we recommend that users who are on non-sleep medication or suffering from any sort of serious medical conditions check with their doctor before using the Lumos Smart Sleep Mask, and discontinue use if experiencing any adverse reactions such as dizziness or migraines.

We understand that no one wants to wear a hard device to sleep, so we have spent a lot of time working with our testers to make sure that the mask is light, breathable, soft, and comfortable.

The Lumos Smart Sleep Mask is charged by MicroUSB, making it easy and convenient to recharge wherever you are.

The removable cover in the Lumos Sleep Mask makes it easy to clean and maintain. The cover is made from a soft and comfortable material that feels great against your skin, but over time it can become dirty and stained from regular use. In that case, all you need to do is remove the cover and wash it in a laundry bag in the washing machine and then air dry to keep it clean and fresh.

According to the FAA, products with lithium batteries will be allowed in both carry-ons and checked bags, so Lumos is compliant with regulations when packed either way. Always good to check the latest regulation to be sure.

The Lumos Sleep Mask has an adjustable strap, which allows you to adjust the fit to your specific head size and shape.

The Lumos Sleep Mask is designed to fit comfortably over your eyes, therefore it won't interfere with the operation of your CPAP machine. We do understand each person has a different preference, so you will get to decide if this works for you.