No return hoops. Proactive check-ins on Night 14, 30, and 60.
04
2-year warranty on materials
Strap, velcro, foam cups, satin covers — replaced free within 2 years.
05
Published Bill of Materials
Every layer, every supplier, every tolerance. Public. ilume.co/bom
§ 06 · Verify your own lift
Our data or yours.
The 47-subject PSG study isn't the point. Your 47th night is. Scan to link Apple Health, Oura, or Whoop. We'll chart your 30 nights before against your 30 nights with.
Pair your wearable. See your own before-and-after.
Umbra has no sensors — on purpose. The lightest mask wins. Umbra Insights reads what your wearable already tracks and charts your 30 nights before vs 30 nights with. Your data stays on your device unless you opt into the anonymized cohort.
Apple Health
Oura Ring
Whoop
+4.2 pts
Cohort REM lift
+6.1 pts
Cohort Deep lift
p = 0.003
n = 47 · 30 nights
Scan to pair your wearable Apple Health · Oura · Whoop
ilume.co/insights
§ 07 · Reviews
What 7,412 sleepers actually said.
All verified buyers, Night 14 or later. Low-star reviews stay in the feed. We reply to every one within 48 hours.
4.8/5
7,412 Verified Reviews · Night-14+ only
5★
83%
4★
12%
3★
3%
2★
1%
1★
1%
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§ 08 · Before you buy
Five questions, five answers.
Will it stay on if I sleep on my side?
Yes. The cups reposition independently via soft velcro, so you can shift them off direct pillow contact. This is the structural fix for what we measured as the #1 complaint (n=38) against Manta Pro's fixed-cup design.
How is this different from Manta Pro?
Three things: 12mm cavity vs 22mm (no pressure on lashes), independently-adjustable eye cups vs fixed cups, and earplugs included free (Manta sells theirs separately at $29). Side-by-side in §03 above.
What if it doesn't work for me?
60 nights, full refund, both-way shipping paid. We proactively email at Night-14 and Night-30 to fit-check so you don't wait until Night-59 to decide.
What exactly ships in the box?
1 Umbra mask in your chosen colorway. 1 pair of silicone earplugs (27 dB NRR, reusable). 1 vacuum-flat travel pouch. That's it.
What's the difference between Single, Double, and the Sleep Kit?
Single ($39) — 1× mask + earplugs + pouch. Double ($69, save $9) — 2× of everything, for the partner or a second set at the travel bag. Sleep Kit ($79, save $37) — 1× mask + earplugs + pouch plus a 22-momme mulberry silk pillowcase (matched to the mask fabric), a spare eye-cup set (2-year wear hedge), and a 2 oz pharma-grade lavender linen mist. A la carte that stack runs $116 — Kit saves you $37.
How does the QR code / Umbra Insights work?
The welcome card has a QR to ilume.co/insights. Read-only link to Apple Health, Oura, or Whoop. Dashboard shows your 30 nights before vs 30 nights with. Umbra has no sensors — we use the ones you already trust. Your data stays on your device unless you opt in.
When does it ship?
Today. In-stock in all four colorways except Moss (drops July) and Rose (Q4 gift drop). US shipping is free, arrives 2–4 business days.
