Plugs are fine in a larger room with considerate people
It fits good, although it still falls off my ears while I'm asleep (I use the bud that fits most accurately). It muffles noise but onky to a certain extent; in a small room, you can hear everything that would disturb your sleep especially if the other person isn't mindful of you. In a larger room with more furniture, it muffles sounds much better. So I guess the plugs are fine, your sleep disorders can be helped only to a certain extent.