I labored in water, and it's great by the way. What I found very useful to have on hand was a couple of twin sheets that I could knot at one shoulder, step into and drape over me, when I had to get out to walk every hour (to keep labor from stalling or to go potty). I was less constricting and required a lot less concentration than keeping a towel in place in a chilly room as my body cooled in the air.