Bedtime nappies/pull ups

At night time my 2.5 year old keeps taking her nappy off, currently she went to bed at 6pm tonight and I’ve come up to bed and seen she’s not got her nappy on again. That’s 3 hours without an accident ect which is great! But I don’t know whether that means I’m meant to be adapting what I’m doing now? This is my first time with potty training since she is my first 😅 so if she’s taking the nappies off at night does this mean I’m meant to start trying something else? Just for context on her potty training: My L/O isn’t quite there with potty training, at home she’s perfect, even using the normal toilet , but still accidents in public and at play school.