I could sew for eight to ten hours into the night and loose all track of time. Being so tired the next day, did not help me out at work. As a Christmas exchange present one year, a co-worker gave me a cute clock for my sewing room. It changed my life. It reminded me when to go to bed, and as a result, I did better at work the next day. Now I am retired and the little clock is still ticking but I don't look at it too much any more.