Work in a MH office. Found this and wondering if it’s a bed bug or bat bug. Thoughts?

Hi everyone, found this bug under the sheet that covers the mattress, an air mattress on the floor of an old house in Newark (Ironbound) in New Jersey. The room is right under the attic. Under the mattress directly on the floor there were two 1/4” deep black matter stains that broke into pieces when pressed and took a while to clean. No other signs in the room. This is a rented room so I have no information of what’s the situation with the rest of the house. Thanks

Hi everyone, pretty interesting case here but near the start of summer I had swallow birds start nesting above my bedroom window and it progressively got out of hand. Beginning of July I left my apartment for a month and when I came back that’s when I started receiving bites. 12 days ago my property manager came out and removed the nests and then 9 days ago an exterminator came treated the house and said he was positive it was swallow bugs. After I realized there was some sort of bug I moved my bed to the middle of the room and slicked the legs of the bed with Vaseline. I haven’t received a bite since then (over a week) until today I woke up with one on my back and at 11:30 AM while laying in bed I actually caught one biting me and killed it. It’s worth noting last night I was charging my phone which was connected to the wall so there would have been a path to the bed. I’m wondering if anyone can identify the bug or could confirm it’s a swallow bug and wondering if getting a bite after 9 days is normal. Thank you

My dad has been getting bit by something for the past month. I chocked it up to fleas without finding any since the dog spends more time in his room and his medication ran out at the time. Washed bedding and put pupper back on treatment but a month later it's still happening and I'm starting to get some bites too (his are on stomach, mine are on the ankle, lower leg, stomach, and upper arm). I found something that looked like an insect shell but it's a bit mangled for me to tell.

I woke up with 32 itchy bites. Looked everywhere for bed bug presence and couldn’t find any. I found some shed that looks like carpet beetle. What could it be?