11yo keeps waking up every night

My 11yo son is consistently waking up in the night.He’s always been a light sleeper but now he’s older he’s able to explain it better. He says most nights he consistently wakes up at 2am, 4am, 5am then lays awake until we get up at 6am. Has done this “for ages” I knew he woke up sometimes but didn’t realise it was this often or regular. Bedtime is around 8.30pm and he’s asleep by 9pm generally. No screens after 8pm for him and none in the bedroom, he likes to read and sleeps with a light on as he’s still a bit scared of monsters! It doesn’t seem to affect him other than he’s often a bit distracted or mumbling and slow, but that could just be his age! Academically he’s doing fine. Should I be concerned or not bothered if he’s healthy? via /r/Parenting https://ift.tt/3q6HKc3