What you want to ask is: "What is the reason why you can't sleep at night after using massage insoles?" I can't sleep at night because the massage insole is not effective. The most important function of massage insoles is to promote blood circulation of soles and protect nervous system. Effectively prevent symptoms of heart disease and hypertension. It can protect the central nervous system and improve insomnia symptoms. I can't sleep at night after using the massage insole, which shows that the massage insole has no effect. So I can't sleep with a massage insole at night, because the effect of massage insole is not good.