I find it hard to believe that it took 68 posts (unless I missed it earlier) for the Safelight to be mentioned in this thread. The Safelight Superbright was my main bedside light for at least 2 1/2 years, using low to navigate during nightly trips.
But I always said I could almost get by with just the glow mode to see around, but not quite, and low was too high. It reamains on "lighthouse" duty on the corner of the table to keep me from crashing into it on return to bed when half asleep, but I started using a cheap coin cell light with a Nichia DS modded into it (low Vf) and a pretty dead 2032 cell. This works very well, and gives a nice split between low and glow on the Safelight. The same "dead" battery has been running since mid-last summer, with little change in brightness.
But now my #1 middle of the night navigator is my own creation, which is a simple Nichia DS + 10,000 Ohm resistor on a 9V cap. I bedded the LED and resistor with hot glue, and bent out a couple of the tabs on the connector to the positive so it can be pivoted for switching. The 10K Ohm resistor keeps the output to just over 0.5 mA, which is plenty in the middle of the night, and will run for approximately forever, give or take a week, on a full 9V - but I just use old ones from smoke detectors or whatever, they work just as good as new ones. I have not even come close to killing a used battery with this.
I always add a flashlight D'jour with low to medium output to tailstand on the nightstand for getting ready for bed and getting up in the morning, when I WANT to be woke up more. Usual suspects include, but are not even close to limited to, a DS-modded Gerber IU (yes, I like Nichia DS LED's), a Novatac 120P or a Fenix L1T on low.
In the bottom of the nightstand is the Dereelight CL1H and Colt 1911 .45 ACP for other less routine tasks.