The Quantified Scientist YouTube channel by Rob ter Horst does a good job imo at comparing trackers against an industry standard baseline. For sleep he uses the Z-Max EEG device.
The history between May and August was deleted on Redfin. Either there is a way to pay Redfin to delete history or @lotsofpulp is right, or maybe a convenient bug?
Yeah that's a trick. They take it off the market and then relist which resets the clock. They do this so buyers won't assume there is something wrong with the property due to the price changes.
