Underpads for Beds and Chairs: Disposable vs. Reusable — The Complete 2026 Buying Guide

The 2 a.m. Sheet Change That Stopped Happening

For the first two months after her hip surgery, Carol's mother-in-law Jean needed help getting to the bathroom at night, and more nights than not, she didn't make it in time. Carol would wake to the sound of Jean crying softly in the next room, already ashamed before Carol even opened the door. Then came the routine: strip the sheets, find dry ones, get Jean cleaned up and changed, and try to fall back asleep before the next round started. Some nights it happened twice.

What actually changed the nights wasn't a new medication or a faster response time — it was a $21 pad. A washable, waterproof underpad tucked under the fitted sheet meant that when an accident happened, only the pad needed changing, not the entire bed. Jean could be cleaned up and settled again in minutes, and on the nights the pad caught everything, nobody needed to change the sheets at all. "I wish someone had told us about these the first week," Carol said. "We would have saved ourselves so many 2 a.m. loads of laundry."

Underpads are one of the simplest, least expensive pieces of equipment in home caregiving, and one of the most underused. This guide walks through the disposable-versus-reusable decision, sizing, where they're used beyond the bed, and real options at AllCare Store.

What an Underpad Actually Does

An underpad — sometimes called a chux pad, bed pad, or incontinence pad — is a multi-layer absorbent sheet placed on top of a mattress, chair cushion, or wheelchair seat, underneath the person. The top layer draws moisture away from the skin, an absorbent core locks it in, and a waterproof bottom layer (usually plastic film or rubberized backing) keeps it from soaking through to the surface underneath. Its whole job is to turn a bedding or furniture emergency into a two-minute pad change.

Disposable vs. Reusable: The Core Decision

Many households use both: reusable pads for everyday nighttime use in bed, and a stack of disposables for travel, flare-ups, or as backup when the wash is running behind.

Choosing the Right Size and Style

• Standard bed pads (23" x 36" to 34" x 36") — sized for the torso and hip area where most accidents happen; the most common choice for a twin or shared bed.
• Full-length and queen/king pads (36" x 54" up to 36" x 72") — cover more of the mattress, useful for restless sleepers or larger beds.
• Chair and wheelchair pads (18" x 24" or similar) — smaller, shaped for a seat cushion rather than a mattress.
• Pads with tuck-in flaps — winged edges that tuck under the mattress so the pad can't slide out of place overnight.
• Pads with handles — built-in grips that double as a repositioning aid, letting a caregiver help shift the person in bed without a separate transfer sheet.

As a rule of thumb: size up if the person moves a lot in their sleep, and choose flaps or handles for anyone who needs help repositioning.

Underpads at AllCare Store

A range of disposable and reusable options from our underpads collection:

Prices shown are typical 2026 figures at the time of writing and may change; check current pricing and availability on each product page. Browse the full underpads collection or the disposable underpads collection for more sizes and case quantities.

How Many Do You Actually Need?

• Reusable pads: plan on at least 3-4 in rotation — one in use, one drying, one or two in the wash cycle — more if laundry access is limited.
• Disposable pads: a 150-count case lasts roughly 5 weeks at one change per day, less if used more than once daily; buying by the case is almost always cheaper per pad than smaller packs.
• Chair pads: one per chair or wheelchair the person uses regularly is usually enough, since these see lighter use than a bed pad.

Care and Placement Tips

• Placement: center the pad under the hips, where most accidents originate — not under the feet or pillow.
• Layering: a fitted sheet, then the underpad, then (optionally) a flat sheet on top keeps the pad from feeling cold or plasticky against skin.
• Washing reusable pads: machine wash warm without fabric softener (it coats the absorbent fibers and reduces performance), and skip high heat in the dryer if the label recommends air- or low-drying.
• Rotate stock: keep a spare pad already on the bed under the top sheet for a fast overnight swap without a full bed-stripping.
• Pair with the right undergarment: an underpad protects the bed, but it isn't a substitute for the right absorbency level of adult diaper or protective underwear — see our guide on choosing the right size adult diaper.

Why Shop Underpads at AllCare Store

AllCare Store carries disposable and reusable underpads in bed, chair, and full-length sizes, along with the full range of incontinence and bedding-protection supplies a household needs — adult diapers, booster pads, waterproof mattress covers, and skin care products. Everything ships free within the U.S. in discreet packaging, with 30-day returns.

If you're not sure which size or type fits your situation, our team can help you match the right pad to the bed, chair, or wheelchair in question — and build out a full incontinence care kit around it.

Frequently Asked Questions

Are reusable underpads as absorbent as disposable ones?

A single-use disposable pad generally has higher one-time absorbency, but a quality reusable pad holds up well for typical nightly use and is designed to be laundered hundreds of times without losing its waterproof backing.

Will an underpad protect my mattress from odor and staining?

A properly sized underpad with an intact waterproof backing keeps moisture from reaching the mattress at all, which prevents both staining and the odor that comes from liquid soaking into foam or padding underneath.

Can underpads be used on furniture, not just beds?

Yes. Smaller chair pads are designed specifically for recliners, couch cushions, and wheelchair seats, and many families also use a larger bed-size pad under a person sitting for extended periods in a chair.

How often should reusable underpads be replaced?

Most quality reusable pads are rated for 200 to 300+ washes before absorbency and waterproofing noticeably decline. Replace a pad sooner if you notice it wetting through, the fabric thinning, or the backing cracking.

Do underpads work for children or only adults?

Underpads come in a range of sizes and are used for children, adults, and pets. Choose a size that comfortably covers the sleeping or seated area for the person using it.

What's the difference between an underpad and a mattress protector?

A waterproof mattress protector covers the entire mattress and is meant to stay in place long-term. An underpad is a smaller, targeted pad placed on top of the fitted sheet or protector, meant to be changed or laundered frequently. Many households use both together.

Ready to Stop the Middle-of-the-Night Sheet Changes?

AllCare Store carries disposable and reusable underpads in bed, chair, and full-length sizes, along with the full line of incontinence and bedding-protection supplies. Browse the underpads collection to compare options and sizes.

Call 1-888-889-6260 to talk through the right size and type for your situation, or visit AllCareStore.com to browse the full line. Free U.S. shipping, discreet packaging, and 30-day returns on every order.

This guide was written and reviewed by the AllCare Store editorial team for general education. It is not medical advice. For concerns about new or worsening incontinence, consult a physician.

MEDICAL DISCLAIMER: This article is for general educational purposes only and is not a substitute for professional medical advice. Underpads are a bedding and furniture protection product, not a treatment for incontinence. If you or someone you care for is experiencing new or worsening incontinence, talk with a physician — it can often be improved or treated, not just managed.