Memory foam topper

Coveredwagon - If you let it get down to freezing inside the trailer then that hole you have made laying on the memory foam remain there for awhile. The memory gets hard as a rock when the temps get down to freezing inside the trailer. Never knew they would do that until I Had memory foam pillows laying in my truck back seat over a freezing night. Those whole pillows were hard as a rock until they warmed back haha...

Pretty funny when you throw the pillow on the floor and it goes clank...

We have our regular two-inch thin mattress with a three-inch foam topper in our off-road popup... Sleeps great for us...

Roy Ken