Is it worthwhile trying to get my bub used to her travel cot before we leave Singapore or is it best to just go cold turkey and see what happens?

I would say depends on your baby's adaptability. My baby has inherited my nature of being able to sleep almost anywhere and anytime. Haha. She sleeps when she wants to, no matter where she is. If your baby is sensitive to changes then you probably should get her used to the cot before flying off.

It would be recommended to get your child used to the travel cot before leaving if not your child might have problem getting used to resting in it. You can consider to set up the travel cot a few days before leaving to allow your child to sleep and nap in it.

thanks