The last point is next to impossible. :-|

This seems a bit strange. If you need an alarm clock to wake up, you are not getting enough sleep.

Is this serious? If you have a painful body part, not putting weight onto it is something that a 12 month old baby has already figured out!

Deep REM? Deep sleep is non-REM sleep (N1 - N3). The temperature recommendations are rather random. Many sources state not 20 C (68 F) but rather 18 C – but this seems to be highly individual.

i do something like this for my lower back pain. elevating a certain part helps. if u have on of those firm rounded pillows put that where it hurts and u'll get some cracks going which'll help

Ever wondered why even Ikea has a selection of 15 or so pillows? Because a pillow is an extremely individual thing, depending on whether you sleep on your side, on your back, or on your belly, whether you change positions, how heavy you are etc. etc.

Oh god, I hate when this happens. I'm sleeping and having a nice time then I go to stretch in my sleep and BOOM I'm up for the rest of the night.

Can someone reverse the picture please. They are sleeping the wrong way!

Too bad I have shoulder pain. I can't sleep on my side. I guess I have to keep snoring!