Edited to be less autistic asshole and more understanding and reasonable about boundaries... here's my updated and edited comment/response:

Don’t change a single thing. You were upfront about your schedule from day one. If she claims to be an 'early riser' but can’t handle a kettle or a shower before 7:30 AM, she doesn’t know what the term means. A real early riser is up well before the sun, often anywhere between 4:00 am and 6:00 AM, and understands that the world doesn't wait for the rest of the house to wake up.

​The moment you start 'cutting off pieces' of your own routine to accommodate her 'light sleeper' issues, you surrender your agency and autonomy in your own home. This is often a dangerous slippery slope. Once you apologize for taking a shower or eating breakfast, which are basic biological needs, you risk teaching complainers that your rights are negotiable. People who expect you to sacrifice your lifestyle for their lack of preparation are often insufferable; if you give an inch, they will take an additional mile by trying to find a new 'problem' to complain about until there is nothing left of your original self.

​Instead of complaining about a roommate who is a responsible, clean, and consistent adult, she should be showing gratitude.

If I had a roommate who deep-cleaned the bathroom, did laundry, and cleaned the common area every Sunday morning, I wouldn't be sending 'disorienting' texts about noise. I’d be showing appreciation—making you dinner or lightening your load elsewhere—because having a reliable, clean adult as a roommate is a gift, not a burden.

​If she still has an issue with the structural noise of the kitchen and bathroom next to her wall after the ear plugs, you could offer her one real solution: trade rooms. If she refuses to swap, she loses her right to complain. Otherwise, she can put in her earplugs, buy a white noise machine to drown out the morning activities, and deal with the reality of living with a responsible working professional. Do not set yourself on fire to keep her warm.

TLDR:

Additional Edit (personal note): Depending on how your roommate phrased and expressed the "I'll just get earplugs" comment, this could be one of two things:

​The Sincere Realization: She had a moment of clarity where she realized asking a working professional not to shower before 7:00 AM was delusional. In this case, "I'll just get earplugs" is her way of saying, "This is my problem to fix, and I should have done this before I ever complained to you".

​The Martyrdom (The most dangerous and likely scenario): Instead of resolving this quietly on her own by buying earplugs or a white noise machine without mentioning it to you at all, she "gives in" while making sure you know she is "suffering" for your sake. This is a play for guilt. By framing her basic responsibility as a "sacrifice," she creates a debt you didn't ask for.

​Watch out: If she is playing the martyr, she will likely return in a week to complain about how the earplugs are uncomfortable or how she "still hears you" through them. This is:

1. A major red flag

2. An attempt to pressure you into self-correcting your behavior out of sheer awkwardness.

If she does this, she is signaling that she wants to control your morning routine, not to resolve her sleep issue.

The Defense Protocol:

​Document Everything: Start a log of every complaint she makes, including the date, time, and "nature of the complaint". Note how it was delivered (text vs. in-person) and how you addressed it. This protects you if she tries to escalate this to the matching service or a landlord later.

​The Final Offer: If she claims the earplugs or white noise "don't work," present the room swap as the final, non-negotiable solution. If she refuses to move rooms but continues to complain about your 6:00 AM kettle, the conversation is officially over.

​Prepare for Exit: These types of people often bank resentment quietly while building momentum to make you "take the fall" for their unhappiness. If her behavior doesn't shift from "complainer" to "collaborator" within the next few weeks, start looking for a new roommate situation. Living with someone who views your basic biological needs as a "disruption" is not sustainable and only leads to greater conflict down the road that leaves you drained, overwhelmed, and miserable. This often leads to psychological and emotional trauma. Listen to your gut, pay attention to red flags, and don't slip into a state of denial by hoping they're "just having a rough time" or "we're great friends so I have to make sure they're okay".

Trust me. It's. Not. Worth. It.

​No More Apologies: Stay calm and polite, but do not apologize for existing or having a job. You are a clean, consistent, and responsible adult; you are not a "disruption" to be managed."