I have suffered fom RLS for many years in my knees and elbows,almost as though someone is making quick spider movements over them,as much as it has been horrid ive been lucky never that often! I have now found out i am 5wks pregnant and every night i have suffered :((( my solution has worked! either cycling in the air and then keeping ur legs elevated all for bout 10 mins,and if ur like me and suffer wit the elbows too,try air punching,all movements that improves the circulation,keep cool too!! hope this helps u !!!!!