Read my first post in this thread, and I've learned something since then. I've moved twice, and what I've found is that where you set the thermostat is not what your bedroom is. Three years ago I said I set it at 72 before turning in, but always suspected that my bedroom was much cooler. To get around the same ballpark at my last place I was setting it around 69. Currently it's closer to 66. I think the sleeping temp is probably about the same, though. In my case I hit the bed with the temp gun the other night and it was 62-63 in the evening and felt great to me. That's where I want things (plus a ceiling fan on high).
One of the very few things I dislike about my new place is the lack of windows I could leave open at night. There aren't many days a year I'd leave them open all night, but during the Winter it's nice to be able to open the bedroom window for an hour or so to crash dive the temperature in there.
Every house/apt has its quirks. Some vents put out more/warmer/less/cooler air. Some rooms naturally stay warmer or cooler. Some maintain more stable temps throughout the day. The thermostat may or may not be in a place where it accurately reflects what's going on (which is my biggest issue now). I've only been in my current digs for a few months, but I'm taking the time to really pin this whole thing down. As of today I'll no longer be on an electricity plan that encourages me to waste juice.
Anyhoo, now that it's cool(ish) out I've been sleeping great. AC is loud as fuck in my bedroom, and maintaining that "66" degrees had it running all night.
Also, re my first post, bed's holding up pretty well, and the sunrise alarm clock still rules.