I was extremely overprotective of Charlie's sleep. I still am with Olive, but you have to be a little more lax when you have two. Right now I'm working in the dark in a hotel room with white noise on while Olive naps.
My mom just came in three times!!! and opened the squeaky door. I would never do that for fear of waking Olive up from her nap! But of course she didn't wake up, and I don't need to be so paranoid, but I can't help it.
With Charlie, I used to travel with garbage bags and painter's tape to block out lights from windows. One thing is for sure.... I think white noise may be my single most important baby product!
Are you overprotective of your LO's sleep?