Could be spider egg sacks.

You're right! I checked on google and that's what they are. Thanks.

Not spiders. It's the sac for a plaster bag moth. I've never heard of them and can't figure how we got so lucky to have them

I am not familiar with all the different types of moths, but we had some gain access to our home on some dried flowers I had purchased from a craft store. Took me a while to find the cause, but once I eliminated the flowers the moths went too. I went back to the store and sure enough I saw the moths flying around in their dried flower section. I told the store employees who basically gave me a blank stare in return. Never went back there.

Just to be safe I dry cleaned and washed everything in my closet and vacuumed up the larvae (shudder). I washed my bedding and sprayed the spots in the house where there was the most evidence of the critters. Probably overdid it a bit, but those things were disgusting.

A warning for those who purchase dried flowers, check them carefully before you bring them home.