Dd hasn't had consistent day naps since 2.5 but if he sleeps 2 hours in the day she will fuss around until about 9pm (we add nap time onto usual 7pm bedtime to work out when she'll be tired).

I always sit in the room with dd while she goes to sleep. We do stories in bed, then lights out and I sit on her bed and read my book on my iPad or phone. If dd is unsettled I read my book out loud. My mum used to read us pride and prejudice as kids, and I can safely say I can't remember a thing about it, because we would drift off pretty quickly lol.