We used an app called Huckleberry to track sleep. Our son would nap every couple hours consistently, but as you get closer to 3 naps a day it helps to see how long they’ve been awake/asleep to keep the routine easy.

Good luck mate. It’s all worth it when you get that first on purpose smile. :)

I got the M50x after my M50s broke, the plastic that holds the ear cup snapped. It’s been about 7 years and they’re still doing great, haven’t had to replace the foam yet.