I use a 1" memory foam topper on my upper bunk, and roll it up to the back, and it allows the top to fold without any problem.

I think you would be safe doing the same with this 1.5" topper.
https://tinyurl.com/zya9p3mt

Hope this helps!

Jack

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Chris S
Sent: Monday, March 8, 2021 3:50 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Mattress Toppers Memory Foam

How are memory foam mattress toppers?  I’m planning a 3-week vacation in Colorado and will sleep upstairs. I currently use self-inflating camping pads, but wonder what has your experience been with memory foam?  Sweaty?  Squishy?  Sublime?

Chris. 

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