So we started Ferber sleep traing 4 nights ago. Nights 1-3 went amazingly well. Last night sucked. Lo cried on and off for 4 hrs before falling asleep for 3 and then cried on and off 2 more hrs before I brought her to bed.

Turns out she has a cold. she didn't yesterday but today she can hardly breathe through her nose. So I'm guessing she was starting to feel sick last night.

So you don't sleep train sick babies right? I assume at this point we just do anything to get her to sleep and start over when she is well??