Holy heaven, you really know a lot! I'm glad to know you think I did well. I tried to do what it felt right for me.
Your advice is really interesting. To be honest, I had no idea this can be done, or should be done, but it makes sense. I'm going to do it, just need to see where to put them during the night.
"Cold and stinging" are not pleasant sensations and this means that the stone "does not fit" you.
No matter what you expect, "cold" it's definitely what you get as it's not summer here and even at room temperature, these stones seem cold at first, then they warm up.
Thank you for the nice comment and now I know where to turn if I need help 😃
Have a nice day.
You're welcome :-)
Unsuitable stone can "freeze" even in hot summer :-)