[quote=“speedracer329,post:82,topic:37520"”]
strengthening the erector muscles is good for your core, id say sleep on the floor, but in order to retain the curvature in your lower spine, use a lumbar support pillow…
[/quote]
On your back with lumbar support= not bad. Side lying with the correct bolstering is ideal.
I deal with people every week who sleep on their back, and regardless of what some people seem to think, it’s not a good position to sleep in unbolstered. But let’s be real here, no one actually uses any support unless they are told to do so.
edit- 02svt- check speedracer’s edit. is your curvature from slouching (hyperkyphosis) or is it a scoliosis?