A sleep mask is a soft, comfortable covering that you wear over your eyes when you want to sleep. It blocks out light to help you sleep better in darker environments. Full definition
The products you've listed are all great (especially their water sleeping mask) but if I could add one item it would be their water bank moisture cream! (beautynerdbynight.com)
I have tried their lip sleeping mask before and love that, so why not this? (maggiealamode.com)
Think of sleeping masks as a booster for your moisturizer — a lightweight, hydration - packed gel that you can apply over your regular moisturizer. (nymag.com)