Demon oppression? Coincidence? Help!

So probably about the scariest thing I've ever experienced just happened. So I've been having a lot of bad and scary dreams lately and I have no idea why, but then 2 nights ago I woke up screaming because 1) I was having another scary dream and 2) I heard something hit the bed. It felt like someone just hit the bed really hard so it scared me and woke me up and I started screaming. I assumed it was my husband but he told me it wasnt him. Fast forward to this morning, everything was fine and we both woke up and got out of bed. About 10-15 mins later my husband goes back into our bedroom and ends up finding the necklace (a tree of life necklace) that I gave him as a wedding present laying across our bed (now let me tell you he lost this necklace MONTHS ago, and we have looked all over, and I mean everywhere, trying to find it with no luck) so then he comes asking me where I found it at and I told him I haven't seen it since he lost it and haven't touched it. I assumed he was the one who really found it and was messing with me but nope. It just magically appeared laying on our bed. And let me say this too, we have washed our sheets countless times since he lost his necklace and very regularly change our sheets/pillowcases as well so there's absolutely no chance it was stuck in the sheets. I've washed them and changed them too many times. Also, it was NOT there last night when we went to bed or even this morning when we got up. My husband just walked back into the room today and there it was, laying across the bed. And the fact this is all happening at the same time isnt a coincidence as well. So please pray for us. This is scary and I'm not sure what's going on.