Sleep Tracking - Waking up in the middle of the night

So I just got my first garmin watch (fr570) and I was aware that sleep tracking wasn't great for people who wake up in the middle of the night. Is there any way to track the second half?

I've set my sleep window from 12AM - 11AM but i always wake up around 5am for about an hour, sometimes hour and a half, and then i fall back asleep for 3+ hours. So last night I slept 3 hours and 55 minutes before waking up but it didn't track the second half. This was all within the sleep window as well.

What can i do, if anything? :(