Heat, Noise, Stale
Air, Damp. Your
Bedroom Has A
Say In Your Sleep.
Heat, Noise, Stale Air,
Damp. Your Bedroom
Has A Say In Your Sleep.

Layla scores the room you sleep in every night, shows what cost you, and suggests one thing to change. Nothing to wear.

4.6100+ Amazon reviews →
4.6100+ Amazon reviews →
Layla sleep score insight card
Layla sleep score card

What Layla Noticed | Bedroom

Air is what cost you last night, not noise. Same pattern six nights running.

→ Leave the door ajar tonight and compare tomorrow.

Rated By Real Households

4.6
Amazon rating
4.8
Google play rating
4.7
App Store rating
4.6
Amazon rating
4.8
Google play rating
4.7
App Store rating

The Bedroom Is The Room Nobody Measures

You spend a third of your life in it, and almost none of what happens there is visible.

1 In 3

adults regularly sleeps less than the seven hours sleep experts recommend.1

CDC, 2026

44 H

of sleep a year: what warm nights already cost the average person, mostly by delaying sleep.2

One Earth, 2022 · 7 million nights

35 DB

is about where single sounds start to wake the sleeping brain, quieter than a whisper nearby.3

WHO Night Noise Guidelines, 2009

3 In 4

people in a national study had three to six common allergens in their bedroom dust.4

NIEHS / NIH, 2018 · ~7,000 bedrooms

Every Layla score is built on the researchEvery Layla score is built on the research

Tap a score to see the research behind it and what Layla shows you.

Research From:

WHO
CDC
NIEHS / NIH
ASHRAE
US EPA
Mayo Clinic

Research From:

WHO
CDC
NIEHS / NIH
ASHRAE
US EPA
Mayo Clinic

How The Sleep
Score Works
How the Sleep Score works

Three room measures, your bedroom only, 23:00 to 07:00. Each band comes from a published standard, and every card in the app shows its rule one tap away.

Sleep Score bands breakdown showing Air, Comfort and Quiet

Air: hours in each CO2 band, following the EN 16798-1 indoor categories.15

Comfort: time outside 20 to 27°C, a stricter 26°C line at night, plus very dry or very damp spells.

Quiet: a night hour counts as loud above a 45 dB average or a 75 dB peak.

Read the week, not the night: the 7-day view shows whether a change you made is holding.

Layla Sleep Score app on phone

One real night, read back to you

Three measures, one timeline, and the sentence Layla writes the next morning.

Bedroom overnight chart from a Layla test home

Next morning

Sleep 51, Poor. Air 36 · Comfort 84 · Quiet 100.

What Layla noticed

The bedroom filled from 01:00 and did not clear until the door opened at 07:00.

What to do

Leave the door ajar tonight and compare tomorrow.

Layla allergies app on phone
Allergies watch humidity card
What we looked at card

For allergy-prone homes: see the conditions, room by room

Most bedrooms hold several common allergens.4 The environment they depend on is something you can see and change.

Dust mites struggle to survive below about 50% humidity.11 Homes held there had over ten times less mite allergen.12,16

Allergy symptoms are often worst overnight and early in the morning,17 which is why Layla scores the bedroom first.

Damp, mouldy homes are linked to 30 to 50% more respiratory symptoms.13

What to do, from the app: run the dehumidifier or ventilate after showers until the room is back under 50%, then watch it hold on the 7-day view.

Get The Most From Your Sleep Score

A four-step routine, built on how the studies measured and improved bedrooms.

1

Put it in the bedroom

At about head height, away from the window and the heater, so it reads the air you breathe at night.

Every Sleep Score measure is read in the room you sleep in.

2

Flag it as your bedroom

The app scores that room from 23:00 to 07:00, the hours the sleep studies measured.

Sleep, Comfort and Quiet narrow to your night automatically.

3

Do tonight's one thing

Door ajar, window cracked, cooling on earlier, dehumidifier after showers: one clear action per card.

Opening the room cut overnight CO₂ from about 2,500 to 660 ppm in a Danish study.7

4

Read the week

The 7-day bars show whether the change held, and the next morning's note tells you what moved.

Scores count hours, so a new habit shows up within days.

Questions People Ask

01.

Do I need to wear anything?


No. Layla scores the room around you, not your body. It sits on the nightstand, reads the night, and hands you a score in the morning. Nothing on your wrist, nothing under the mattress.

02.

How is the Sleep Score calculated?


Layla scores three bedroom measures from 11pm to 7am: air (hours of stale air), comfort (time outside 20 to 27°C) and quiet (loud hours at night). The weakest measure holds the score down, so you always know which one to fix first.

03.

When do I get my first Sleep Score?


The morning after your first full night with Layla in the bedroom. You'll get a Sleep Score plus a note on what moved it and what to do tonight.

04.

Can I track the kids' room too?


Yes. Each sensor covers one room. Flag any room as a bedroom and Layla scores it overnight the same way, Sleep, Comfort and Quiet from 11pm to 7am.

05.

What should a healthy bedroom look like?


Aim for fresh air under about 1,000 ppm CO₂, a night temperature around or below 26°C, quiet under the WHO night-noise bands, and humidity below 50% if allergies are a concern.

06.

Is it private?


Yes. Layla measures room conditions, air, temperature, humidity and noise levels, not people. No cameras and no audio. Levels only, never recordings.

07.

Do I need a subscription?


No. You own Layla once. Your Sleep Score and every feature on your plan stay unlocked, with no monthly fee.

Start With The
Bedroom
Start With The Bedroom

One device, one-time price.

Smoke & Air Quality

Air, comfort, allergy and mold-risk cards for every room.

$99One time

View Smoke & Air Quality

FULL SLEEP SCORE

All-in-One

Air, comfort and quiet in one Sleep Score, plus allergies, mold risk and presence.

$299One time

View All-in-One

4.6
Amazon rating
4.8
google play rating
4.7
App Store rating
4.6
Amazon rating
4.8
google play rating
4.7
App Store rating

30-Day Money Back · 2-Year Warranty30-Day Money Back
2-Year Warranty

Full Comparison On

  1. 1. CDC, National Center For Health Statistics. Sleep Duration And Sleep Difficulties Among Adults, NHIS 2024. Data Brief 559, 2026.
  2. 2. Minor K. Et Al. Rising Temperatures Erode Human Sleep Globally. One Earth, 2022 (7 Million Nights, 47,628 People).
  3. 3. World Health Organization Europe. Night Noise Guidelines For Europe, 2009.
  4. 4. Salo P.M. Et Al. (NIEHS/NIH). Exposure To Multiple Indoor Allergens In US Homes. Journal Of Allergy And Clinical Immunology, 2018.
  5. 5. Okamoto-Mizuno K., Mizuno K. Effects Of Thermal Environment On Sleep And Circadian Rhythm. Journal Of Physiological Anthropology, 2012.
  6. 6. Smith M.G., Cordoza M., Basner M. Environmental Noise And Effects On Sleep: An Update To The WHO Systematic Review. Environmental Health Perspectives, 2022.
  7. 7. Strøm-Tejsen P. Et Al. (Technical University Of Denmark). The Effects Of Bedroom Air Quality On Sleep And Next-Day Performance. Indoor Air, 2016.
  8. 8. CIBSE TM59. Design Methodology For The Assessment Of Overheating Risk In Homes (Bedrooms: 26°C Night Criterion).
  9. 9. Fan X. Et Al. Effects Of Bedroom Ventilation On Sleep: A Single-Blind Field Study In 29 Bedrooms. Science Of The Total Environment, 2023.
  10. 10. Akimoto M. Et Al. Ventilation Requirements For Bedrooms (ASHRAE RP-1837). Science And Technology For The Built Environment, 2025.
  11. 11. Arlian L.G. Water Balance And Humidity Requirements Of House Dust Mites. Experimental And Applied Acarology, 1992.
  12. 12. Arlian L.G. Et Al. Reducing Relative Humidity Is A Practical Way To Control Dust Mites And Their Allergens In Homes. Journal Of Allergy And Clinical Immunology, 2001.
  13. 13. Fisk W.J., Lei-Gomez Q., Mendell M.J. Meta-Analyses Of The Associations Of Respiratory Health Effects With Dampness And Mold In Homes. Indoor Air, 2007.
  14. 14. ASHRAE Standard 160-2021, Criteria For Moisture-Control Design Analysis In Buildings.
  15. 15. CEN. EN 16798-1:2019, Indoor Environmental Input Parameters (Temperature, Humidity And CO₂ Categories).
  16. 16. Mayo Clinic. Dust Mite Allergy: Diagnosis And Treatment.
  17. 17. Smolensky M.H., Reinberg A., Labrecque G. Twenty-Four Hour Pattern In Symptom Intensity Of Viral And Allergic Rhinitis. Journal Of Allergy And Clinical Immunology, 1995.
  18. 18. Sleep Foundation. The Best Temperature For Sleep.

Know What Your Bedroom
Did Last Night

One device by the bed, a score by morning, and the research behind every number.