Ive tried sleeping with masks on in the past, but they put too much pressure on my eyes. Adjusting the clamps is a lot easier with that. It doesn’t take away from anything just a thought for the seller to update the pictures for a more accurate product. I’ll need to continue checking back and forth to determine how strong the correlation is. Im pretty impressed over all for their wear and comfort after all the "running" I put them through chasing 1st graders. Very nice and got at ₹509 only. I bought 2 of these for my husbands shop and he loves them! They are springy, cushiony and comfy and easy to slip on and off to run out to the garden or the store. If you want a quality product from a quality company, buy Kingston. Reason for purchasing sandals, had BigToe Nails removed and wanted to play golf.