Sleep Clinic Supply Checklist

A sleep clinic — sometimes called a sleep center or accredited sleep disorder center — runs a different stocking list than a general outpatient clinic. Its core service is an overnight polysomnography (PSG) study or a CPAP titration study, both dependent on supplies most other specialties never touch: scalp and facial electrodes, skin-prep abrasives for a clean signal, and a bench of CPAP mask interfaces sized for whatever a titration patient needs to try that night.

This checklist covers what’s specific to sleep medicine, not general clinic basics (gloves, exam table paper, sharps containers) that apply everywhere. For CPAP and oxygen mask interface selection in detail, see CASRAI’s CPAP and Oxygen Mask Types: Selection Guide; this page covers what a sleep clinic needs on hand across a night’s studies, not interface selection already covered there.

Where to source this: LAC, CASRAI’s sister medical-supply business, stocks the polysomnography skin-prep and CPAP interface items covered below. Alcohol prep pads for electrode-site skin prep are available in LAC’s Alcohol Prep Pads category, and CPAP titration mask interfaces are available in LAC’s CPAP & Oxygen Masks category.

Polysomnography (PSG) Electrode and Skin-Prep Supplies

Skin prep is the single highest-yield stocking category for signal quality: a scoreable PSG record needs a clean, low-impedance EEG/EOG/EMG signal for the full night, and most artifact or re-scoring problems trace back to inadequate skin prep rather than equipment failure. Standard technique is to clean each electrode site with an alcohol prep pad to remove skin oil, follow with a light abrasive gel to reduce dead-skin resistance, then apply electrode paste and the electrode itself — checking impedance before starting the study and re-prepping any site that doesn’t come in low enough to trust for scoring.

• Alcohol prep pads — used to degrease and clean each electrode site (scalp part lines, mastoid, chin, outer canthus, sternum) before abrasive prep and electrode paste go on. See LAC’s Alcohol Prep Pads category, linked above.
• Skin-prep abrasive gel or paste — reduces dead-skin resistance at each site after the alcohol wipe, before paste and electrode placement.
• Conductive electrode paste or gel — the actual conductive medium between the electrode and skin.
• Disposable EEG/EOG/EMG electrodes (gold-cup or disposable snap) — the full scalp, eye, and chin montage a PSG scoring standard calls for.
• Electrode collodion or adhesive tape/gauze wrap — for hairline scalp electrodes that need to hold through a full night of head movement.
• Cotton-tipped applicators and gauze — for cleanup and precise paste application at small sites (outer canthus, mastoid).
• Impedance-meter test leads compatible with the clinic’s PSG amplifier, kept in working order and checked routinely — a failing lead reads as a bad electrode site and wastes prep time chasing the wrong problem.

CPAP Titration Interfaces to Keep On Hand

A CPAP titration study exists specifically to find a pressure and interface a patient can tolerate for a full night, which means the sleep clinic — not the durable medical equipment (DME) supplier who eventually fills the home prescription — is the party that needs multiple interface types in multiple sizes in the room, not just one. CASRAI’s CPAP and Oxygen Mask Types: Selection Guide covers the tradeoffs between nasal masks, full-face (oronasal) masks, and nasal pillow masks in detail; the practical stocking implication for a titration lab is to keep all three families on hand in a range of sizes rather than standardizing on one, since a patient who can’t tolerate the first interface tried mid-study needs a second option in the room, not a rescheduled appointment.

• Nasal masks, multiple sizes — the default first interface for most adult titrations.
• Full-face (oronasal) masks, multiple sizes — for patients who mouth-breathe, have nasal congestion, or fail a nasal-mask seal mid-study.
• Nasal pillow masks, multiple sizes — for patients who report claustrophobia with a nasal or full-face mask, or who can’t tolerate anything resting on the nasal bridge.
• Chin straps — used with a nasal or nasal-pillow interface to help keep the mouth closed and prevent pressure loss through mouth leak.
• Heated humidifier chambers and CPAP tubing (disposable or single-patient-use) — dry mouth and dry nose are common early-titration complaints, and a heated humidifier is standard equipment for keeping a patient comfortable enough to reach a usable pressure.
• A range of loose cushion and pillow sizes, not just complete masks — swapping a cushion size is often enough to fix a mid-study leak without switching interface families entirely.

Airflow, Respiratory Effort, and Cardiac Monitoring Supplies

Beyond the CPAP interface itself, a PSG study is scoring sleep stage, airflow, respiratory effort, and oxygenation simultaneously, each of which needs its own single-patient-use sensor:

• Nasal pressure cannula / airflow transducer — measures airflow directly at the nose for apnea/hypopnea scoring.
• Oronasal thermistor or thermocouple — a secondary airflow signal, particularly relevant if the patient mouth-breathes.
• Thoracic and abdominal respiratory effort belts (RIP belts) — sized to the patient, with disposable single-patient-use liners or belts.
• Pulse oximeter probe (finger clip, single-patient-use or disinfectable reusable) — continuous SpO2 tracking through the night.
• ECG electrodes — a limited-lead cardiac signal is standard in PSG montages, separate from the EEG/EOG/EMG electrode set above.
• Snore microphone/sensor and body-position sensor — supporting channels most accredited labs score against.
• Capnography supplies, where the study protocol calls for end-tidal or transcutaneous CO2 monitoring — more common in pediatric sleep labs than adult.

Infection Control Between Studies

A sleep clinic reuses expensive equipment (PSG headboxes, CPAP machines, oximeter clips) across patients far more than it reuses direct skin-contact consumables, which makes between-patient turnover its own stocking category:

• Single-patient-use disposable items wherever a device is available in that form (nasal cannula, RIP belt liners, disposable oximeter clips) — the default choice for anything billable that doesn’t need to be reused.
• Low- or intermediate-level disinfectant wipes rated for the reusable equipment on hand (CPAP headgear, non-disposable oximeter clips, headbox surfaces) — follow the equipment manufacturer’s compatible-disinfectant list, since some disinfectant chemistries degrade silicone mask cushions and cable insulation with repeated use.
• CPAP mask and tubing replacement stock sufficient to avoid reusing a mask cushion, tubing segment, or humidifier chamber across patients without a full disinfection cycle between uses.
• Bouffant caps or hair ties for long-hair patients — keeps hair out of scalp electrode sites and reduces the hair product residue the skin-prep step has to work around.

Reimbursement and DME Handoff Considerations

A sleep clinic that both runs the diagnostic titration study and refers patients to CPAP home therapy sits at the boundary between clinical supply stocking and durable medical equipment (DME) billing — two different reimbursement pathways that are easy to conflate. The titration study itself (electrodes, sensors, technologist time) bills as a diagnostic sleep study, not as DME; the home CPAP machine and ongoing mask/filter/tubing replacement supplies the patient goes home with typically bill through the DME benefit instead, with its own documentation, supplier, and compliance requirements. See CASRAI’s Medicare DME Coverage: What’s Reimbursable and What Isn’t guide for how that separate pathway works — it matters for a sleep clinic mainly at the referral handoff, not for stocking the titration lab itself.

Building Par Levels

Par levels for a sleep lab are best built per bed/room per night rather than per week, since a single unusually busy night — a full slate of split-night titrations, for example — can burn through electrode and interface stock fast. Keep at least one full spare interface set of each mask family in the room itself, not only in a central supply closet down the hall, since a mid-study swap can’t wait on a walk to storage.

Frequently Asked Questions

What’s the difference between a sleep clinic and a general DME supplier for CPAP equipment?

A sleep clinic runs the diagnostic PSG and titration study that determines whether a patient has a sleep disorder and what CPAP pressure and interface work for them; a DME supplier fills the resulting home-equipment prescription and bills the ongoing supply-replacement benefit. Some organizations do both under one roof, but they’re functionally separate stocking and billing operations — see the Medicare DME guide linked above for the billing-side detail.

Why do sleep clinics need multiple CPAP mask types instead of just one?

A titration study’s purpose is finding an interface and pressure the specific patient can tolerate for a full night, and patients don’t converge on one “standard” interface — some can’t tolerate anything on the nasal bridge, some are chronic mouth-breathers who need a full-face seal, and some do fine with a minimal nasal pillow. A lab stocked with only one interface family has to reschedule any patient who can’t tolerate it, rather than swapping mid-study.

What causes a poor-quality PSG signal, and how does stocking address it?

Most PSG signal-quality problems trace back to inadequate skin prep rather than equipment malfunction — skin oil, dead skin, or hair-product residue at an electrode site raises impedance and produces a noisy or unusable channel. Stocking enough alcohol prep pads, abrasive gel, and electrode paste to properly prep every site, every study, without rationing them, is a direct signal-quality investment, not just a consumables line item.

Do sleep clinics need pediatric-specific supplies?

Yes, where the clinic sees pediatric patients: smaller electrode sizes, smaller CPAP mask sizes (pediatric nasal and full-face options exist from most mask manufacturers), smaller RIP belts, and — more often than in adult labs — capnography for CO2 monitoring, since pediatric sleep-disordered-breathing protocols lean on it more heavily than adult protocols typically do.