Considering it's a mild narcotic, absolutely! And milk as well! (both affects the brain in similar ways to xxium, so when babies go to sleep after feeding it's not just because they're full, it's because you drugged them!)
I hear you though, all tea is unique, has it's own flavors. I'm actually quite a big fan of chamomile's flavor, it took a little getting used to but once I did it's quite tasty. Black tea which I drink most often is still quite bitter, but it's worth it just to change up from the typical water and get something nice and warm in the morning. Crazy how warm drinks both wake you up and put you to sleep so well. Anyways, Chamomile is as far as I've found one of the most diverse types of tea, different brands are vastly different. I bought this Tazo brand this last time having thought it was supposed to be better, but it's fruitier, good, but the smell is a bit off putting as it smells kind of like orange peel, but it's tasty so it's all good. I've gone through 3 brands in the last 2 weeks and each was distinctly different, certainly a minty flavor though, I think that's the key binding so like you said spearminty would be an apt description, but it's good to me.
Even if it's not something you like, any warm beverage is good for sleep, I keep buying this "fruit sampler" pack(non caffeinated still), it has Black Cherry, Wild Berry, Blueberry, and Raspberry, all delicious, sometimes I mix up the evening cup with those, or even the mid day cup... god I drink a lot of tea since I stopped drinking so much

mixes so well with a vape, the only thing I don't do is mix those same berry flavors with the same flavor vape, it's too weird.