60-NIGHT QUIET GUARANTEE ✦ 1-YEAR WARRANTY ✦ 9 GRAMS · NO APP ✦ 20-MIN GRACE PERIOD ✦ 60-NIGHT QUIET GUARANTEE ✦ 1-YEAR WARRANTY ✦ 9 GRAMS · NO APP ✦ 20-MIN GRACE PERIOD ✦
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★★★★★ 4.6 · 1,056 verified owners
Side-Sleep Trainer · The Night Line
FYROST Dusk™
Trains you off your back — without waking you.
$79.90$119.90Save 33%
Delivered in 5–10 business days.
- Senses a roll onto your back — answers with a gentle vibration that escalates softly until you turn onto your side
- 20-minute grace period — fall asleep in any position you like; Dusk starts watching once you're under
- 9 g on a coin battery — no app, no pairing, no charging; about 30 nights per CR2032, auto-off after 8 hours
- Worn on the forehead or chest with skin-safe adhesive strips · nothing in your mouth, nothing on your jaw
Pack: Solo
Solo or Duo?
Solo
One Dusk with its sticker roll, coin battery and guide. Perfect if one snorer is the whole problem.
Duo
Two complete kits — one that lives on the nightstand, one in the wash bag for hotels and holidays. Or one for each of you, if the snoring is mutual. You save $30.
Most popularDuo
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What happens when you roll onto your back
Position sensing · gentle vibration prompts
20 min
Grace period to fall asleep first
9 g
You forget it's even on
30
Nights per coin battery
Dusk senses your sleeping position and prompts with gentle vibration. It is a sleep-habit training device, not a medical device — it does not diagnose, monitor or treat any condition.
The back-sleep problem
Most snoring starts the moment you roll onto your back. Strips, sprays and mouthguards never touch that.
On your back, gravity pulls your tongue and soft palate toward the airway — which is exactly why the elbow in the ribs and the 3 AM “turn over!” work instantly. Dusk simply automates the elbow, and does it kindly: a coin-sized sensor notices the roll and answers with a gentle vibration that escalates until you're back on your side. No jaw hardware, no tape over your mouth, no machine on the nightstand — and the person next to you finally stays asleep too.
One disc · Six jobs
Built to make side-sleeping the default
01
The Nudge, Not An Alarm
Vibration starts feather-soft and firms up only if you ignore it — a prompt to turn, not a wake-up call.
02
Your Partner Sleeps Too
Completely silent. The only person who feels anything is the one who rolled onto their back.
03
Fall Asleep Your Way
Press the button and drift off in any position — Dusk waits 20 minutes before it starts watching.
04
Nothing In Your Mouth
No mouthguards, no chin straps, no tape. A 9-gram disc on your forehead or chest.
05
A Habit, Not A Crutch
Positional training is designed to stick — many owners find themselves turning over before the buzz by week three or four.
06
Zero Maintenance
Coin battery, about 30 nights, auto-off after 8 hours. No app, no charger, no pairing screen.
How to use
On in under a minute. Then never think about it.
No app, no pairing, no charging. Four steps the first night — Dusk takes it from there.
Stick it on
Press a fresh adhesive strip onto the disc, then onto a clean, dry forehead — or the centre of your chest.
Switch it on
Hold the button three seconds until the light blinks. Fall asleep any way you like — Dusk waits 20 minutes before it watches.
It catches the roll
Settle onto your back and Dusk feels it, answering with a few soft pulses — a gentle cue to turn onto your side.
It does the rest
Dusk powers down on its own after 8 hours. One coin battery lasts about a month, and blinks when it's time for a fresh one.
Worn on the forehead or breastbone, for adults who snore on their back. A sleep-habit trainer — not a medical device; it does not diagnose, monitor or treat any condition.
Why Dusk
The gentle fix — without the $499 prescription device
| FYROST Dusk | Rx positional trainers | Anti-snore mouthpieces | Chin straps | |
|---|---|---|---|---|
| Price | $79.90 | $499 + prescription | $100+ | $15 |
| Targets the real trigger — back-sleeping | Yes — trains you off your back | Yes | No — jaw, not position | No — jaw, not position |
| Nothing in your mouth | Yes | Yes | No — worn between your teeth | Yes — but it straps your jaw shut |
| Comfortable enough to forget | 9-gram disc | Neck-worn strap device | Sore-jaw mornings are common | Most give up within a week |
| Prescription required | No | Yes (US) | No | No |
| Lets you fall asleep your way | 20-minute grace period | — | — | — |
| Warranty | 1 year | 1 year | 90 days | — |
1,056 verified owners
The elbow, retired
★★★★★
"My wife has elbowed me awake for fifteen years. Third night with this thing I woke up on my side with no memory of turning over. She noticed before I did."
Mark R. · Verified Buyer
★★★★★
"Bought it for my husband after the snoring nearly got its own bedroom. The buzz doesn't wake him — he just rolls over mid-snore and goes quiet. Genuinely eerie the first time you watch it happen."
Sandra K. · Verified Buyer
★★★★★
"I fall asleep on my back reading, and that was always the trap. The 20-minute delay means I can doze off however I like and it still catches me when I flip later. Week four: I'm turning over before it even buzzes."
Devon P. · Verified Buyer
Good to know
Questions, answered
How does it know I'm on my back?
A position sensor inside the disc reads your orientation all night. Twenty minutes after you press the button — a grace period designed so you can fall asleep in any position — it starts responding: roll onto your back and a gentle vibration begins, escalating softly until you turn onto your side.
Will the vibration wake me up — or my partner?
It's designed to prompt a turn, not sound an alarm. The buzz starts feather-soft and only firms up if you ignore it; most sleepers simply roll over and stay under. And it's completely silent — your partner hears nothing, which is rather the point.
Is this a sleep apnea device?
No. Dusk is a wellness training device for back-sleeping snorers — it is not a medical device and does not diagnose, monitor or treat sleep apnea or any other condition. If you suspect sleep apnea, please talk to your doctor.
Who is Dusk designed for?
Adults 18 and over whose snoring shows up mainly on their back — the position Dusk is built to train you out of. It isn't designed for people who snore on their side, and if you have significant neck or shoulder issues, check with your doctor first. Keep it off broken or irritated skin, and out of reach of children.
Forehead or chest — which is better?
Both work; it's personal preference. The forehead reads position very cleanly; the centre of the chest is more discreet and suits people who find anything on their face annoying. Try both — your sticker roll covers plenty of experiments.
What about the battery and the stickers?
One CR2032 coin battery — the kind in a car key — runs about 30 nights, because Dusk switches itself off after 8 hours and its low-battery light warns you before it quits. A roll of skin-safe, latex- and drug-free double-sided adhesive strips is included, and replacement rolls are inexpensive and easy to find.
How long until side-sleeping sticks?
Positional training is a habit play: the nudge does the work at first, and your body gradually learns to prefer your side. Many owners report turning over before the buzz by week three or four — keep Dusk in the drawer for relapse weeks after that.
How long does shipping take?
Orders are processed within 1–2 business days and delivered in 5–10 business days with tracking emailed the moment your Dusk leaves the warehouse.
What if it's not for me?
Sleep on it for sixty nights. If you're not waking up on your side, send it back for a full refund — no restocking fees. Every Dusk carries a 1-year warranty.
60
NIGHTS
The FYROST promise
Try it 60 nights. Love it, or your money back.
Sleep on it for sixty nights — through the work weeks, the hotel beds, the heavy dinners. If you're not waking up on your side, and the person next to you isn't sleeping through the night again, email us for a full refund. No restocking fees, no awkward questions.
FastUS shipping
2-Yearwarranty included
Secureencrypted checkout
Realhuman support
Everything you need — in one box
Dusk Side-Sleep Trainer9 g · 3-axis sensor · vibration motor
Adhesive Sticker RollSkin-safe · latex & drug-free
CR2032 Coin BatteryAbout 30 nights of training
Quick-Start GuideThe 60-second setup
Choosing Duo? You receive two complete kits — both sides of the bed, or home and travel, are covered.
Turn over a new night.
The next snore doesn't get a vote. Join 1,000+ sleepers who trained themselves off their back.
60-night trial · 1-year warranty