Boy aged 8 years old have periodic limb movements daily during sleep , lasts for 5-10 times in the beginning of sleep. will it lasts forever ? any side effects because of this in future ? is there any home remedies?

Many kids and adults have arm and leg movement during sleep. It's a condition called "periodic limb movement disorder". The cause is unknown and it is not harmful. It can come and go. Working on good sleep habits is thought to help. If the movements are waking up the child or you want other options, talk to your pediatrician and consider a referral to a pediatric neurologist.