Disclaimer: It takes a lot for me to enjoy a "waking up" beginning.
I'm not sure if this one has me hooked just yet. It feels forced, like you're trying to introduce things mysteriously, like the moth and the vials.
I'd personally like it more if it were structured differently, with the conflict more obvious, so that I have a reason to stick with the rest of the sleepy beginning.
"Leofrick should have slept all through the night. The time bands on the candle indicated no more than an hour had passed."
That, as a beginning, hooks me better. Your words, just restructured. I personally don't care about his groggy thoughts or echoing voices.
Sorry... this critique is really biased against the "waking up" style of starting a story, but I WILL give that kind of beginning a chance if it's really good. Hunger Games had a "wake up beginning" and I was hooked because the character woke up with purpose. Yours just feels like it's trying to say too much backstory with the voices and the vials.
The moth part IS interesting, but I'm already in "generic waking-up beginning" la la land to focus on it too much.
Hopefully this is helpful!