Hmm I bought these and had no problems at all:
UltraBlock Zippered Mattress Protector (Queen) - Waterproof Cover Stops Dust Mite, Bed Bug, Spills, Bedwetting - Hypoallergenic Encasement with Zipper - White https://a.co/d/594j8Rh
Dust Mite and Allergen Proof Pillow Encasing (Cover); Premium Microfiber (Standard Size) https://a.co/d/8NZkbyT
Pricing for both combined being less than $50
Not related, but OP, if you get the chance I recommend at least trying out Project Wingman in VR with joysticks.
Holy shit, was it a transcendent experience.
I beat the campaign with a controller on a monitor my first time around, but on my second playthrough I played it in VR and I found there is nothing like looking for bogeys and tracking them by peeking around your cockpit.
More related to the prompt, but if anyone wants a recommend:
I just beat both Pentiment and Return of the Obra Dinn and both were truly the historical detective / mystery games that I've waited so long for.
Go into both completely blind and report back. I guarantee you, that you will not be disappointed.