Welcome to Groundhog Day!
The movie by the same name is so good that we should probably all settle down and watch it tonight.
Alternatively, here is a list of books that involve the same kind of time loop.
Lots of choices on this list, from this one, that sounds nicely low key:

You only get one first day at a new school to make a good impression. Or do you? When shy, movie-obsessed teen Andie moves to Punxsutawney, she finds herself reliving her first day over and over again, discovering friendship, romance, and understanding that will help her fit in… if she can manage to experience the rest of her senior year.
To this one, which sounds anything but:

If you’re looking for an action-packed time loop book, check out this Japanese title, the inspiration for the film Edge of Tomorrow starring Tom Cruise. In the book, Keiji is a soldier fighting against an alien invasion. Every time he dies in battle, he is reborn to fight again. But after hundreds of rebirths, he receives a secret message that may help him break the loop.
My two favorite recent takes on the premise were the movie Palm Springs and the tv show Russian Doll – I guess both share the idea that the protagonist isn’t the only person stuck in their loop. Palm Springs is a little lighter, but I liked the themes of kindness that emerged in Russian Doll
Only found out this past Sunday, that there was a stage production of a Groundhog Day musical in 2016-17: it played London and Broadway but never broke out enough to tour nationally. Multiple award nominations, though, and the fan who told me raved about it: I should see if there’s a bootleg video on youtube.
Craig, you certainly should! I hope there is one!
Sarah, themes of kindness would be right up my alley.
Russian Doll gets a little darker in bits, but it’s only 8 or so episodes, and I enjoyed the conclusion a lot.
Palm Springs is kind of an offbeat rom com, and starts out with one character having been stuck in the loop for years and years already, which is an interesting twist.