On my last two tours, once on each of them I heard some noise in my tent vestibule. It was small animals that were quite interested in the food in my drybag that was in my tent vestibule. One of these occurrences was at a large national park campground, the other was at a private campground, both of these campgrounds were mostly used by RVs. So not exactly a wilderness area, no bears or other large predictors that would require more careful food storage. Noise and light chased them away. I never store food inside my tent, but often do in the vestibule in such areas.
I have since bought an Ursack. It is a kevlar fabric bag that animals can't get into. I suspect it is only sold in North America, as it is sold for food storage when camping in areas with a lot of bears. Bears can crush any contents in the bag but they can't eat any of it, so they are not trained to look for those in campsites. I plan to use a dry bag inside the Ursack for food storage on my future trips. If you tie it to a tree, it will be there in the morning. See photo, this was my food one night this past summer on a backpacking trip in an area frequented by bears.
And no, in bear country I am not stupid enough to store my food in my vestibule. With the Ursack, I can store food farther from the tent and know it will still be there in the morning.
Second photo, in a campsite in Grand Canyon which has been a national park for decades. There are wild deer there that have lost all fear of humans because there is no hunting allowed, you can see how close they were, my backpacking partner is sitting at a table in the photo. Those deer were grazing right in our campsite area during the night for the two nights we were camped there, they were quite noisy.
