My DD has been swapping b/w 1 & 2 day sleeps over the past couple of weeks.

Before DLS she was awake from anywhere b/w 6-7 and up until 10 then slept until 11 or 12 then normally went for another nap about 3ish but i found she was harder to get to sleep at night and was waking a few times a night.

The last couple of days i have tried dragging her out til 11, which as it's been 7 til 11 hasn't been to hard, she then sleeps anywhere from 1 to 3 hours, she gets up, has lunch, a couple of snacks in the arvo, then tea and is down for the night.

Maybe if you gradually dragged her out 10min more each day until she had a nap from say 11, i have found if DD has a snack sometimes this helps and she gets her 2nd wind and is easier to get down at 11. Some people change lunch to then and put them down straight after lunch?

Sorry prob haven't helped much, have been struggling with it myself, especially with DLS now.