>>451194i JUST made this up:
steel can. line with alunimium foil (to reflect heat back inside) place and S-shape steel can trimming (made from another can) inside to absorb and slowly release heat from candle.
POSITION 1: hold can between your hands to warm them up with your face over the top.
POSITION 2: place betwwen thighs to heat up legs, hands and face.
POSITION 3: place 1 or 2 cans under feet to warm them up.
PIC OF DIY HEATER
you could also make a bunch of them. place them under your elevated bed and heat the whole length of your body.
i`m currently using 1 on my lap to warm up my middle-section + hands.