"During the mask session, participants reported feeling less happy and more tense ... "On the bright side, performance on the other cognitive tests was not significantly worse." ...

Additionally, she says the mask is on the heavier side, so it's an option you need ... But if the mask type seems is what you prefer, you'll be happy to know that it improves the appearance ...

As a side sleeper, I’ve experienced first ... and return it for a refund if you’re not entirely happy with it. The Manta SOUND Sleep Mask comes complete with a mesh zip bag for travel and ...