I always wear a watch to bed and charge the lume by placing the watch on an LED flashlight for about 30 seconds. Superlume holds that charge all night. Average rep lume only holds that charge for about 5 hours. Since I have very poor vision without my contact lens, lume is a practical feature for me and I am not "nutty" using it every night to know the time when I wake up during the night. The most important time to know is about 3 am. Unusual noises in the house at that hour are taken far more seriously than unusual noises at 6 am since I know 3 am is "prime time" for professional criminal activity since the odds are good people are asleep at that time. So it goes like this for me: unusual noise wakes me up, I check the time and if it is 2 to 4 am I wake up my brain ,listen closely for a while and get ready to grab my 1911 handgun.