"I sit up for about 45 minutes after I take two of these and they really seem to work. I don't feel groggy the next day.....I do give myself 7-8 hours of sleep once I have taken these.
I will"... (read full reviews)
"This square patch is the perfect size so you don't overheat, especially in the summer.
It gets very warm and lasts sometimes much longer than 8 hours.
Plus if you wear these patches a lot for pain,"... (read full reviews)