Sleepovers at Canterlot Castle: Seven ways Twilight could see her friends MORE than just "once a month", while staying canon-compatible. · 5:38pm Nov 10th, 2019
...That's option 1.
Here's all the other options Twilight could see her friends more often than just once a month:
- Ask Princess Luna to teach her dream walking so she can hang out with her friends in a shared dream. She does have that ability canonically.