Cotton Blackout Sleep Mask

Feels comfortable when I'm sleeping. It totally blacks out the light and you can't see anything. I like that it's cotton. The only drawback is that the eye cups lose their shape over time and tend to touch my eyes, thru the eye lids. I also don't think that Bon Charge will replace the eye pads alone.

very good for planes

It's very comfortable and blocks out visible light, as long as you don't wear a CPAP, then a little light shows around the nose, but that can't be mitigated, due to CPAP mask design. Overall, it works great, feels comfortable.