Hi Dr.Ake,
Thanks for the quick update on your mattress. I’m glad both you and your wife are adjusting well in such a short timeframe. I’m hoping that you’ll be able to share more updates after you’ve had a chance to use the mattress for a while longer.
Regarding the protector, it looks to be a pretty standard design using a polyurethane film under the top panel for the waterproof capacity. It’s similar to many of the mattress protectors discussed in post #89 here.
Phoenix