For hospitals & health systems
Patients heal on a clock. Most hospitals fight it.
Earthlight models the Human ROI of circadian lighting for health systems — turning better patient sleep, calmer nights, and steadier staff into the language your CFO and CNO already use.
01 — The problem
A 24/7 building on a 24-hour body
Hospitals run around the clock, but patients and staff don't. Wards stay brightly lit through the night and dim by day — the opposite of what the human clock needs. The result is fragmented patient sleep, disorientation and delirium, and clinical teams fighting their own biology through every night shift. None of it appears on the lighting invoice.
Patients
lose the sleep that recovery depends on.
Clinicians
fight fatigue — and fatigue drives error.
Health systems
absorb longer stays, readmissions, and turnover.
02 — The Human ROI
Where the Human ROI shows up
Earthlight quantifies the levers that move a health system's economics — so the case for circadian light is made in the terms finance and nursing leadership already track.
Shorter length of stay
Better-regulated sleep supports faster recovery, and length of stay is one of the largest cost drivers a hospital has.
Fewer readmissions
Sleep, delirium, and recovery feed the outcomes behind costly readmission penalties.
Less delirium and fewer falls
Circadian-supportive light can ease the nighttime disorientation that drives ICU delirium and patient falls.
Better patient experience scores
Sleep and environment are exactly what patients remember — and what surveys like HCAHPS measure and reimbursement follows.
Nurse retention
Lighting that supports night-shift alertness makes the hardest shifts more sustainable, and clinical turnover is brutally expensive.
Fewer errors
Alert, entrained staff make fewer mistakes — the kind that carry both human and financial cost.
03 — The science
Light is the body's strongest timing signal — even in a hospital bed
A patient's recovery depends on sleep, and sleep depends on a clear day-night signal. Bright, blue-rich light by day and warm, dim light at night reinforce the cycle that governs healing, mood, and cognition — while constant nighttime light erodes it.
Earthlight grounds its models in this circadian science and the standards advancing it, then translates it into the operational and financial terms your decisions actually run on.
04 — How it works
From light to line item
01
Walk the units
We map how light moves through patient rooms, corridors, and nurse stations across the full 24-hour cycle — where biology is supported and where it's working against you.
02
Model the Human ROI
We translate circadian impact into the terms leadership tracks: length of stay, readmissions, experience scores, and staffing.
03
Protect the spec
We give your design and capital teams the numbers to defend circadian lighting — before it gets value-engineered out of the project.
05 — Questions
Before you ask
Is Earthlight a lighting product?
No — Earthlight is decision-support software. We model and quantify the human ROI of circadian lighting so the right design survives budgeting. We work alongside your designers, vendors, and facilities team, not in place of them.
New tower or existing floors?
Both. Modeling the ROI before value engineering is exactly how circadian lighting survives the budget conversation — but retrofits are where many of the fastest wins live.
Does the evidence actually hold up?
We build on established circadian science and recognized standards like the IES and the WELL Building Standard. The Review walks you through the assumptions and the model so you can see how the numbers are built.
Who is this for?
Facilities and design leaders, CNOs, and capital teams across hospitals and health systems.
See the Human ROI for your health system.
A 20-minute review that turns circadian light into the outcomes your CFO, CNO, and design teams use to decide.