Well, I've been discussing the issue with the Glo being put into sleep mode by a magnetic cover in such a way that the beams are interrupted by the cover, inside pocket or flap, etc., prior to it completing the transition into sleep mode(or more accurately prior to the neonode IR shutting down). Conversely, sleeping the Glo manually, without blocking the IR, and allowing it time to shut down before placing it in the same magnetic sleep cover should eliminate the heavier drainage, if the IR remaining blocked is the trigger for the drainage. (I think it keeps the IR LEDs on?)
Others are talking about the Touch, which doesn't have a magnetic shutdown option and must be manually slept. Whether my conjecture is correct, or applies also to the Touch I cannot say, my theory uwas merely developed primarily to fit the circumstances Mrs. Often experienced with her Glo as a way of explaining what was observed. At this point it is merely, at best, "an educated(?) guess." I could be partly or completely wrong and it could be something else.
Further, there may be more than one drain issue that manifests differently between the Touch and the Glo -they are not the same device, most notably there is a distinct absence of the magnetic sleep sensor(hall effect sensor), lighting circuitry, and menu button from one model to the other. The shared firmware may, likely most certainly does, have code forks which execute based on the presence of hardware particular to that specific device. I haven't experimented with my Glo, or my Touch. I've just developed a theory that may or may not fit the facts as well as I'd like, but so far it seems valid for the drain issue on the Glo. I suppose I should dig up a magnet, something to block IR, and test, but honestly I'm not looking for yet another experiment at the moment. At least not tonight, I'd prefer reading to testing tonight. I also need to get back to the lab and see what Igor is up to... he mentioned something about a resurrection being appropriate for the holiday. Relax Supporters of the Christian Right, God has a sense of humor -he created you.
Parting wisdom: Do as I say, not as I do -and don't assume, that's my thing and should only be employed by those of us stupid enough to attempt it, and smart enough to preface our rants by admitting it.