I’m a very light sleeper and am frequently woken at dawn in the summer months, so am always on the look out for a decent eye mask, and have tried dozens over the years.
When I received the Groove sleep mask I was initially a little disappointed as it seemed a little insubstantial although the cotton fabric is lovely and soft.
How wrong I was! This is without doubt the most comfortable sleep mask I have tried. The thinner fabric means side sleeping is comfortable with no bulky fabric around the ears. The adjustable strap means you can tailor the size exactly. There is a slightly padded section over the nose which is very comfortable.
The mask completely blocks light and is the only mask I have ever been able to keep on all night.
Highly recommend!