
So worth it! We tried the hot water in a cup method the night we brought my LO home and my husband ordered a warmer from Amazon for overnight delivery to avoid that wait time again. Our warmer has a "fast"setting that warms it in 5ish min. Totally worth it. I think the one we have is Grownsi.
Ordered overnight after bad experience with hot water method; 'fast' setting warms in ~5 min; 'totally worth it'; Amazon next-day impulse buy that paid off
I recently bought the grownsy one that lifts the bottle up after it's done warming, seems like it would solve your problem
Recently bought; notes specific feature (lifts bottle when done) that addresses auto-shutoff concern from OP