Once they're in an established routine, you should definitely wake them up if they oversleep. If I let my daughter snooze for too long in the morning she won't want to sleep at lunchtime or go to bed at a decent hour in the evening.
Catherine Cross, mum to Madeleine, 8 months
So our girls know it's time to go to sleep, we play them the same music every night just before bedtime. When they hear it, they know it's time to wind down and it even works if they wake up during the night. It only took a few weeks for them to recognise it so it's worth persevering with it.
Julia Crannock, 35, Cardiff, mum to Millie, 19 months, and Rosie, 3 months