dry diaper for 5+ hours

My son, 3 months on 5/8 , has been dry from 7pm or so and is still dry. Had a bottle at 11:30 or so pm. Still dry. Should I be worried ? His bedtime was off today. Normally bath Jammie's book bottle and bed around 7:30/7:45. He fell asleep 9ish tonight bc I was at a birthday party. Some nights he has stayed dry for 8-10 hours then pees after morning bottle. Hoping that's what this is. Just freaking myself out.