What are my options for adding/changing a layer ?

Hi dgem8,

So far so good … thanks for the update.

[quote]We do have a mattress protector on top of it. I hope that it is not inhibiting the flow of the topper.

Do you have a mattress protector over it? Do you have any recommendations?[/quote]

Yes I would use a mattress protector over it but different types of mattress protectors will have a different effect on the feel and performance of your sleeping system (mattress and topper). Unless they were quite thick (more like a mattress pad than a protector) they should have a relatively small effect on the feel and performance of the topper. There is more in post #89 here about the pros and cons of different types of mattress protectors.

Phoenix