Review title is Side by side comparison of three sleep masks-Earth Theraputics is no longer my favorite [SEP] This is a side-by-side comparison of three masks:<br />[[ASIN:B001ET7HJI Earth Therapeutics Mind/Body Therapy Sleep Mask, Cotton, Silk]]<br />[[ASIN:B00FJQFJX8 Bedtime Bliss® Contoured & Comfortable Sleep Mask & Moldex® Ear Plugs]]<br />[[ASIN:B00M9BC1M8 Premium Quality Eye Mask with Contoured Shape By Nidra]]<br /><br />I've used the Earth Therapeutics soft mask for five years, and the the Nidra and Bedtime Bliss masks for the last several months. All have their advantages and disadvantages. My favorite is now the Nidra mask, but it has an important flaw.<br /><br />I sleep from after midnight until 8am, and my bedroom is bright. Therefore, I need a mask that will stay on for seven or eight hours. If it shifts when I move during the night, it will not be covering my eyes when the sun comes up.<br /><br />Although I used it for several years, the Earth Therapeutics mask does the worst job of staying in place all night. I think this is because it does not have as much shape or structure as the other two masks. Also, it presses on your eyes, making it a bit less comfortable than the other two masks. I no longer use this mask.<br /><br />The Nidra mask does the best job of staying in place. It is also slightly larger than the Bedtime Bliss mask, and feels a bit more comfortable. However, the Nidra has a flaw: Although they all have the same length band, the elastic on the Nidra band has a bit more tension than the Bedtime Bliss or the Earth Therapeutics masks, which means that it is too tight on my fat head. I have actually had to extend the strap with a piece of dual-sided velcro strap in order to make it comfortable. Now it fits the best and stays in place better than the other two masks.<br /><br />The Nidra mask is about 3/4 inch or 2cm wider across the eyes than the Bedtime Bliss mask. If you have a small or narrow face, you may want to try the Bedtime Bliss mask first<br /><br />As far as light blocking and comfort go, both the Nidra and the Bedtime Bliss do a good job. Therefore, my choice is the Nidra because it stays on better after I make the strap longer.<br /><br />Summary: I have stopped using the Earth Therapeutics mask. The Bedtime Bliss and Nidra are very similar, but the Nidra fits me better and stays in place longer. If you have a large head like me, the Nidra mask will be tight. If you have a small or narrow face, try Bedtime Bliss.