Not OP, but had the same experience several years ago. The answer is yes.

If you want a cheap test, you can tape aluminum foil over your bedroom window(s) for a night (learned this from The Martian!). It will fully block all light, and you probably already have what you need to try it in your home. Note that it does have the downside that from the outside you look like a crazy person.

I also use this trick when traveling - some AirBnBs have crazy thin curtains.