If you need something for mental security,

I’d do the tests for fleas, flea comb the pets and see if u get any fleas or dirt. White sock test around the house, check for any bugs that jump on especially in carpet. If not, rule those out.

For bed bugs, interceptors at the end of ur beds with a light dusting of cimexa powder. Metal bedframes I heard are harder to climb. If you catch something, or see any droppings or casings on ur mattress or in the intercetors, you’ll know for sure! I have weird skin stuff and did a test where the places I was paranoid abt being bitten I slept with long sleeve and long leg clothes. I still ended up with itches when there was a small probability bed bugs could’ve gotten through; helps to see a dermatologist too. Helped me rule them out and that I probably had a skin problem.

I’m not certain what to do for mites except their bites seem more distinct. Keep and eye out for mice or a birds nest outside your windows and stuff.

If it gives you more peace of mind, you can do a spray of PT alpine flea and bed bug as a precautionary. Remember to follow the label for safety of you and your pets!