DD's pediatrician told us that it's time to start sleep training (waah!) now that she's 4+ months old. She's a pretty good sleeper for the most part, but we often have to play the "binky fairy" and help soothe her back to sleep. It doesn't happen every night-- probably every other night or so, and almost every day for naps. I've tried more gentle approaches to sleep training which have helped get us to this point, but after a particularly rough couple days of sleep we are ready to do CIO.

My husband often works nights but has the upcoming week and a half off of work. I am a complete softy and absolutely dreading the thought of DD crying. On the other hand, crying doesn't bother my husband at all. I know he will be a great support to me and very consistent. My question is regarding the timing of sleep training. Would you....

(a) Sleep train now when my husband is home. However, we are going out of town in one week to my IL's for a couple days and sharing a room with DD. I know that vacations can affect sleep, so not sure if it is worth it to try now and hope she doesn't regress over vacation. Would she be sleep trained by one week from now?

(b) Wait to sleep train until our trip is over. My husband will be back working nights so I'll be doing the bulk of the sleep training (and likely crying right along with her!).

Also, did you do nap training at the same time or wait until night sleep was consistent?

Looking for any advice and encouraging success stories!