The * feature is good for daytime naps. It serves's it's purposes well--to shut out the light and to shelter my dry eyes from the ceiling fan creating more dryness and discomfort. Worked great for sleeping in the daytime.

These are soft and lightweight. It is comfortable and feels luxurious and silky. Very comfortable and smooth & adjustable.

The adjustable strap is great for my petite head. It has an adjustable slide to make it tighter or looser. It is a thin clip, but if you are a side sleeper it is bothersome.

If you loosen the band the mask will not block the light or stay on properly. The mask is made of a nice material but has no cushion to give eyelids freedom. The nose flap is worthless.