Dry Mouth at Night | Rheo™ Oral Pouches by OPS
Dry mouth at night? Wake up comfortable again.
If you’re waking at 3 a.m. with a mouth like sandpaper, you need relief that lasts the night — not a spray that’s gone by the time you fall back asleep.
You wake up in the dark, tongue stuck to the roof of your mouth, reaching for water — again.
Nighttime is when dry mouth is at its worst. Saliva naturally slows while you sleep, and if you breathe through your mouth or use a CPAP, you dry out even faster. So you wake up parched, your lips are cracked, and your sleep is wrecked.
Sprays and gels don’t make it through the night, and you can’t exactly chew gum while you sleep. You need something that keeps working for hours — quietly, comfortably, all night.
- Waking up parched at 2 or 3 a.m. Reaching for the water glass night after night.
- Cracked lips and a sore, sticky mouth. The dryness leaves your mouth raw by morning.
- Morning breath and dental worries. Overnight dryness is hard on your breath and your teeth.
- Broken, restless sleep. You never quite get the deep rest you need.
Why dry mouth hits hardest at night
A few things gang up on you after dark — here’s what’s really going on.
Saliva slows in sleep
Your body naturally produces less saliva overnight, so there’s nothing to keep your mouth moist.
Mouth-breathing
Breathing through your mouth while you sleep dries the tissue out fast.
CPAP airflow
Constant airflow from a CPAP machine can leave you bone-dry by morning.
Evening medications
Many nightly prescriptions list dry mouth as a side effect right when you need saliva most.
Autoimmune dryness
Conditions like Sjögren’s reduce moisture around the clock — including all night.
Age & menopause
Saliva declines with age, and hormonal changes can make nighttime dryness worse.
Relief in three easy steps
No routine to learn. One pouch, whenever you need it.
Tuck
Slip one pouch comfortably between your lip and gum. No chewing, spraying, or dissolving.
Swish
A small sip of water or your own saliva activates the hydration formula right away.
Enjoy
Keep it in for hours of comfort — and it keeps supporting your natural saliva after it’s out.
Four active ingredients, one pouch
Thoughtfully engineered by a dentist to hydrate, stimulate saliva, and protect your teeth.
Xylitol
Stimulates natural saliva and helps starve decay-causing bacteria.
Nano-Hydroxyapatite
Helps protect and strengthen enamel, the building block of teeth.
Hyaluronic Acid
Attracts and holds moisture to soothe dry oral tissue.
Citric Acid
Triggers the body’s own gustatory-salivary reflex.
Built to last the whole night through
Why nothing else lasts until morning
Sprays and rinses fade in minutes. Rheo™ keeps working for hours — discreetly, while you sleep.
| What you get | Rheo™ | Spray | Lozenge | Gum | Melts |
|---|---|---|---|---|---|
| Lasts for hours | ✕ | ✕ | ✕ | ~ | |
| Stimulates natural saliva | ✕ | ~ | ~ | ~ | |
| Protects enamel (nano-HA) | ✕ | ✕ | ✕ | ✕ | |
| Hyaluronic acid | ✕ | ✕ | ✕ | ✕ | |
| Discreet, no bump | ~ | ~ | ✕ | ✕ | |
| Sugar-free | ~ | ~ | ~ | ~ |
= yes · ~ = varies by brand · ✕ = no
They tried everything. Then they tried Rheo™.
“My dry mouth was so bad my mouth was in pain. These pouches work wonders, especially overnight. My mouth is finally starting to heal. Subscribed right away!”
“One pouch lasts about 3 hours for me, and there’s no bump in my mouth like the melts. The most discreet, long-lasting option I’ve tried.”
“Best product I’ve found to relieve dry mouth after an 8-year search.”
“We built the dry-mouth solution we couldn’t find for our own patients.”
Rheo™ was created by a husband-and-wife team — Dr. Ryan, a dentist, and Dr. Rachel, a pharmacist — who saw every day how few dry-mouth products actually worked. Most only masked the problem for a few minutes. So they engineered a pouch that lasts, supports your natural saliva, and protects your teeth while it works.
FREE
TRIAL
Try a Starter Pack risk-free
Feel the difference in your first few pouches. No subscription required, ships fast, and it’s HSA/FSA eligible at checkout.
Your dry-mouth questions, answered
Can I use a pouch while I sleep?
Many people tuck one in before bed for long-lasting overnight comfort. As with anything in the mouth overnight, use as directed and talk to your dentist if you have questions.
How long does one pouch last?
Most people get hours of comfort from a single pouch — far longer than a spray or lozenge that fades in minutes. Many reviewers keep one in for 2–3 hours.
Is it safe to use every day?
Yes. Rheo™ is sugar-free, alcohol-free, nicotine-free and made in an FDA-registered facility. It’s designed for daily, long-term use. It is not a medical treatment and doesn’t replace professional dental or medical care.
Will it damage my teeth?
The opposite — it’s formulated with xylitol and nano-hydroxyapatite to help protect enamel and support a healthier mouth while it hydrates.
Can I use my HSA or FSA?
Yes. Rheo™ is HSA/FSA eligible — just select the option at checkout.
Wake up hydrated, not parched.
Tuck in one Rheo™ pouch before bed and give your mouth hours of comfort through the night.
Sleep comfortable againThese statements have not been evaluated by the Food and Drug Administration. Rheo™ is not intended to diagnose, treat, cure, or prevent any disease and is not a substitute for professional dental or medical care.
