and I have had others tell me too. (that is where I got the
idea for the waffle thingy--from a friend).

I use Jersey sheets...they stretch quite well. I am not using 3 toppers
which would be possible to use a king sheet with. A single topper and
the fit would be different. The new Jersey sheets are slightly larger, and work
best for me. (we have a Queen)

But I get movement just the same. Esp on the twin up north.
I am a tosser/turner. Sticking my PN feet out, etc.

And they are HOT... if yours is not, then you are an exception.
I have read many many others report on the heat.
In winter it is nice, in summer, less nice.

Shelley if you get one--a topper--- you will have to air it out.
Some really stink majorly. I had to put mine out on our dock
for two whole days. ( I can't stand chemical fumes, I get asthma from chemicals).