I'll be flying to Anchorage, Alaska, very soon. In Anchorage during the time I'm traveling, it's common for the sun to not set until it's past 11:00 PM, and for the sun to rise very early in the morning.
I'm staying at a hotel which according to a review does not have blackout curtains to block out sunlight during times I'm sleeping. If my hotel doesn't have blackout curtains, what's an easy way to block out the sunlight and prevent it from reaching the curtain?
A sleep mask is not a solution that I prefer, as I don't like the feeling of it on my eyes and head.