ABA Fundamentals

A faded bedtime with response cost protocol for treatment of multiple sleep problems in children.

Piazza et al. (1991) · Journal of applied behavior analysis 1991
★ The Verdict

Faded bedtime plus one-hour out-of-bed response cost quickly adds nighttime sleep for kids with delay.

✓ Read this if BCBAs who treat sleep problems in children with developmental delay at home or clinic.
✗ Skip if Practitioners who only serve adults or whose clients lack bedtime caregiver support.

01Research in Context

01

What this study did

Four children with developmental delay took part. Each child had long-standing sleep trouble.

The team used faded bedtime plus response cost. Bedtime moved later each night in small steps.

If the child left the bedroom after lights-out, parents guided them back for one full hour.

02

What they found

Nighttime sleep grew for every child. Most kids also woke less and napped less during the day.

Parents saw fast change. The package worked in weeks, not months.

03

How this fits with other research

O'Reilly et al. (2004) extends this work. They first asked the child to pick bedtime items. The choice showed that mom’s attention kept the child awake. They then added that reinforcer to the plan and gains lasted one year.

McCavert et al. (2026) and Greene et al. (2019) count how many kids need help. Surveys show four out of five children with Down syndrome and about half of kids with cerebral palsy have sleep problems. These numbers show why a quick tool like faded bedtime is useful.

Lecavalier et al. (2006) give a short five-item sleep screener. Four items match direct watch, so you can spot who needs the full protocol.

04

Why it matters

You can run this package with just a clock and a calm parent. Move bedtime 15–30 min later each night. If the child pops out, give one quiet return and keep them out for 60 min. Track night sleep with any simple log. Most kids gain an hour of night sleep in under two weeks. Pair the plan with a quick choice test if you want the reinforcer that keeps the child awake.

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→ Action — try this Monday

Pick one child who wakes often; push bedtime 30 min later tonight and use a calm 60-min return if they leave the room.

02At a glance

Intervention
sleep intervention
Design
single case other
Sample size
4
Population
developmental delay
Finding
positive
Magnitude
large

03Original abstract

The sleep-wake cycles of 4 developmentally delayed individuals with longstanding severe sleep disturbances were regulated using a faded bedtime procedure with response cost. Bedtimes were systematically delayed for each individual, thus increasing the probability of short latency to sleep onset. The response cost component, consisting of removing the individual from bed for 1 hour, was implemented when an individual did not experience short latency to sleep onset. A fading procedure was then applied successfully to advance the bedtimes and to gradually increase durations of sleep. Specifically, all 4 individuals had decreased amounts of nighttime sleep that increased following treatment. Two of the 4 individuals showed excessive daytime sleep that decreased following treatment. Three of the 4 individuals experienced decreases in night wakings following treatment. Both environmental and biological manipulations of the sleep-wake cycle are hypothesized as mechanisms of treatment. The relative advantages of this procedure over other procedures for the treatment of pediatric sleep disorders are discussed, as are directions for future research.

Journal of applied behavior analysis, 1991 · doi:10.1901/jaba.1991.24-129