We live in a semi detached house with a small garden in London. It's hot so we've been sleeping with the windows open. Next door but one is a student house. Last night and at least once this week they've been out in the garden talking and woken us up. This has been after 10:30pm because that's when we go to bed and we definitely have been woken from sleep rather than not able to get to sleep.
Aibu to have a chat with them? Fwiw I don't let my kids play in the garden until 9am so as not to wake child free neighbours, I feel they are not being considerate of our sleep.