Sleep alarm not making noise anymore

I have an IPhone 15 pro max. I’ve been using the sleep feature for a while now because I like how it works. Recently, I’ve been waking up much later and when I check my phone, it says the alarm has been going off for a few minutes and the snooze and stop buttons both appear, but no noise is coming out of my phone. I’ve tried restarting the device, making sure that my sounds and ringer are on, and turned off the attention aware feature for Face ID. But still, nothings working to fix the issue. Please help!