I'm 29+1 and with you there. Lots of pillows is what I use but still up half the night with sore hips and back, plus of course the bathroom breaks. I dread going to bed because I know I'll be awake most the night. But try propping pillows all over and see if that helps at all. I use 1 between my knees, 1 under my belly(between my hip and ribs), 1 to hug (love my cuddle pillow, lol) and 2 under my head. Warning: if you do use that many, rolling over is more difficult than baby already makes it. Good luck!
hehe i have that prob i sleep proped up and on my back 23 weeks pg i found that with winter comming i brung out my heated blanket it relaxed me quite a bit and when i was little my grandma use to use warm milk when i would not wind down for the night i like to do that as well also take a warm bath before you wind down for the nigh and i wear a mask to bed (lots of pillows) its all about comfort lay down and read or listen to some music tv even you could ask your doc about taking melotonin my ob doc recomended it for me.