I like this but feel I am getting old.
Old people used this when I was very young.
I heard this from Indonesian friend.
She is younger than I and she uses.
She uses Salonpas when she goes to bed.
She told me that she could slept very well.
And I tried it. It really worked.
I normally use 4 sheets, 2 for low back and other 2 for neck.
I apply before go to bed. And the morning comes when I wale up.
This is a great idea. But I take shower always after use Salonpas. The smell is very strong. I can not use this during work. You can get at Costco and other stores.