I got a fitbit through my insurance for under $20. So far, three days in, I rather like it. Still trying to work out how to log my sleep as I was trying to stop sleep mode every time I woke up, but that wasn't really working out. I'd get confused and sometimes forget to restart when I was dozing off. I might just leave it on sleep mode all night in bed and see if the restless periods correspond with when I'm awake.