I was very much looking forward to the Steel HR tracking how much sleep I get each night. I have a newborn infant and sleep in several nap-like sessions of 1-3 hours each night. So far my Steel HR has omitted the first and last sessions a few nights in a row, making the data useless. Additionally if I take a midday nap for 30 minutes, the watch doesn't track it properly and add it to the total sleep for the day. As other posts have suggested, at the very least we should be allowed to manually add sleep in the app, similar to manual weight tracking.