bugbed123 on "Found casing/skins [a: carpet beetle larval skins]"

Hi everyone. We found a couple of what appear to be some sort of casing/larval skins on our bed frame slats and floor. Do these look like bed bug casings? Or perhaps some other sort of bug? Occasionally I'll see a carpet beetle here and there. Thanks in advance!

Photos:

1. https://flic.kr/p/CDKork

2. https://flic.kr/p/CDKdHH

3. https://flic.kr/p/DsSxCt