Flatmate's Alarm Wakes You Every Morning? What To Do
Their alarm goes off at six. Then again at 6:09. Then 6:18. It carries on for forty minutes while they sleep straight through it, and you're lying there awake with two hours until you need to be up.
It sounds trivial, and it isn't. Regularly broken sleep affects concentration, mood and health, and the NHS is clear about what long-term sleep loss does to you. This is worth treating as a real problem rather than a personality quirk you're supposed to tolerate.
The short version
- Say something after the second or third time, not after three months.
- They almost certainly don't know. That's the whole point of sleeping through it.
- Ask for one specific change, not for them to be a different person.
- Protect your own sleep in the meantime. Earplugs are not a defeat.
Why it happens
Worth understanding, because it changes the conversation.
Someone who sleeps through their own alarm is not being inconsiderate on purpose. They're usually exhausted, and often they've trained themselves to ignore the sound by snoozing it for years. The alarm has stopped meaning "wake up" to them and started meaning "nine more minutes".
Common causes: shift work, a genuinely punishing schedule, a phone under a pillow, or being someone who simply sleeps very deeply. Sometimes it's exhaustion from something going on in their life that you don't know about.
None of that makes it your problem to absorb. It does mean going in angry will land badly, because from their side they haven't done anything.
Raise it early, and once
The mistake is waiting. Three weeks of building resentment produces a conversation about your feelings rather than about the alarm.
Go the same day if you can, when you're tired but not furious. Something like: "Did you know your alarm went for about forty minutes this morning? I don't think you're hearing it. It's waking me up."
That works because it's information rather than an accusation. Most people are genuinely mortified and fix it that week.
Be specific about what you want: "Could you move the phone away from the wall?" is actionable. "Could you sort your alarm out?" isn't.
Fixes that actually work
Worth suggesting rather than just complaining, because most people don't know these exist.
- A vibrating alarm under the pillow. Wakes them, silent to everyone else. This is the single best fix and it costs about fifteen pounds.
- A smartwatch or fitness band with a vibrating alarm, if they already wear one.
- Move the phone away from the shared wall. Sound travels through structure, and a phone on the floor by a stud wall is effectively in your room.
- Turn off snooze entirely. One alarm they have to get up for beats six they can ignore.
- A gradual wake-up alarm that starts quiet and builds, rather than a klaxon at full volume.
- An alarm app that needs a task to dismiss, like scanning a barcode in the kitchen. Effective, though the getting-up may then be its own noise.
Protecting your own sleep
Do this regardless, because you can control it and you can't control them.
- Earplugs. Soft foam ones cost very little. Wax or silicone are more comfortable for side sleepers.
- White noise, a fan, or a sleep app. Masking works better than blocking for muffled repetitive sounds.
- Move the bed away from the shared wall if the room allows.
- A draught excluder at the base of your door. Surprising amount of sound comes under doors.
- Soft furnishings on the shared wall. A bookcase, a heavy curtain, a rug hung as a wall covering. Genuinely effective and all removable.
None of these need permission, which matters when you rent. Anything screwed to the wall does. What you're allowed to change in a rental.
If it doesn't stop
You've mentioned it kindly, twice, and nothing has changed.
Be direct the third time. "This is still happening and I'm not sleeping. I need it fixed." No apologising for raising it.
Say what it's costing you. People respond to consequences they can picture. "I'm making mistakes at work because I'm running on five hours" is concrete in a way that "it's annoying" isn't.
Bring it to a house conversation if others are affected. One person is a clash; three is a house problem.
Offer to buy the vibrating alarm yourself. Slightly pointed, and it works, because it removes the last excuse.
When it's a sign of something else
Worth holding in mind before this becomes a war.
Someone who can't wake up, is sleeping through everything, and seems exhausted all the time may be struggling. Depression, burnout, an untreated sleep problem, or something they haven't told anyone about.
If that seems possible, the conversation is a different one. "Are you alright? You've seemed shattered lately" costs nothing and occasionally matters a great deal.
It doesn't mean you have to keep losing sleep. It does mean the framing changes.
Where the landlord comes in, which is nowhere
This isn't a landlord matter and asking them to intervene will go nowhere useful. They have no authority over what time someone's phone goes off.
One exception: if sound is carrying because of a building fault, a gap around a pipe, a hollow door that doesn't fit, a broken door closer in a communal hallway, that's a repair worth reporting in writing. What your landlord must fix.
Thin internal walls are usually just thin walls, and no landlord is going to soundproof them.
The honest summary
Say something the second time it happens, assume they don't know, and suggest the vibrating alarm. Sort your own earplugs out in the meantime.
Most of these end within a week of someone finally mentioning it, and go on for months when nobody does.
More on shared living: living with housemates, the bathroom in the morning, and the cleaning rota.
And when the tenancy ends, review the property. How much sound carries between rooms is one of the things nobody can tell from a viewing, and exactly what the next tenant would want to know.
General guidance for renters in the UK. Not legal advice, and your own tenancy agreement governs your arrangements with your landlord.