Examining the Efficacy of Mattress Technology in Improving the Sleep Quality of Children With ASD

Compare percentage of drop-out, in this cohort, due to issues with the mattress technology (e.g. ease of use, inability to fall asleep) to a population expected drop-out rate of 30% using a one-sample proportion test.

Within subjects comparison of the average daily, parent reported sleep quality across on and off conditions using a Likert-type scale of 1-7 in which 1 is "extremely poor" and 7 is "exceptional"

Within subjects comparison of the average total sleep time (hours) in the on and off conditions as recorded by actigraphy watch

Within subjects comparison of sleep latency (minutes) recorded by actigraphy watch in the on and off conditions

Within subjects comparison of total time awake during night (minutes) recorded by actigraphy watch in both on and off conditions

Within subjects comparison of time spent sleeping (sleep efficiency as percentage) recorded by actigraphy in both the one and off conditions.

Within subjects comparison of average Social Responsiveness Scale -2 (SRS-2) T-scores in baseline, and on and off conditions.

SRS-2 T-score ranges from 30-90 (M = 50, SD = 10). Higher T-scores indicate a greater extent of social communication deficits.

Within subjects comparison of the parent completed Aberrant Behavior Checklist (ABC) total raw score in the baseline, and on and off conditions.

The ABC measures the level of challenging behavior of individuals in and across 5 subdomains (Irritability, lethargy, stereotypy, hyperactivity, inappropriate speech) using a Likert-type scale of 0-3 in which 0 is "not at all a problem" and 3 is "the problem is severe in degree". The sum raw scores of these subdomains make up the total ABC raw score (range = 0-174) in which a higher score indicates more severe challenging behaviors.

Within subjects comparison of the average Children's Communication Checklist (CCC-2) General Communication Composite standard scores across baseline, and on and off conditions.

CCC-2 is a parent questionnaire that assesses children's communication skills across 10 domains using a 4-point Likert type scale (0=less than once a week/never to 3=several times a day/always). The general communication composite standard score based on age norms was used to asses overall communication competency (M=100, SD=15). Lower general communication composite scores indicate a higher likelihood of significant communication problems.

Within subjects comparison of the Family Inventory of Sleep Hygiene (FISH) average total raw scores across baseline, and on and off conditions.

The FISH is a parent-completed questionnaire that assesses sleep hygiene-related behaviors in children using a 5-point Likert scale (1=Never, 2=occasionally, 3=Sometimes, 4=Usually, 5=Always). Typically parents rate these behaviors with reference to the past month, but for the present study they were asked to rate for only the previous two weeks to correspond to each mattress condition. The total raw score was used to asses sleep hygiene (Range = 12-60, in which higher scores are indicative of better sleep hygiene-related behaviors).

Within subjects comparison of the Children's Sleep Habits Questionnaire CSHQ average total raw scores across baseline and on and off conditions.

The CSHQ is a parent-completed questionnaire that measures a variety of sleep-related problems using a 3-point Likert-scale (1=rarely/0 to 1 times per week, 2= sometimes/2-4 times per week, 3=usually/5-7 times per week). Ordinarily, parents rate these behaviors for the pas week but for the present study they were instructed to rate for the past two weeks to correspond to the mattress on and off conditions. The total raw scores were use to evaluate overall sleep difficulties (Range = 45-135, in which a higher score is indicative of more sleep problems).

Within subjects comparison of the Short Sensory Profile Questionnaire (SSPQ) average total raw scores across baseline and on and off conditions.

The SSPQ is a parent-completed questionnaire that measures behaviors related to sensory processing abnormalities. Items are based on a 5-point Liker scale ranging from 1=always to 5=never. The total raw score was used to evaluate overall sensory abnormalities (Range=38-190). Lower scores indicate a higher probability of sensory processing abnormalities.

Within subjects comparison of the Child and Family Quality of Life 2 (CFQL-2), quality of life average total raw scores across baseline and on and off conditions.

The CFQL-2 is a parent questionnaire that evaluation seven different aspects of child and family quality of life (child, family, caregiver, financial, partner relationship, external support, and coping quality of life). An adapted version was used that decreased the number of total items from 32 to 26 and added an additional item to each scale to specifically evaluate changes of the past two weeks in quality of life. Items use a 5-point Likert scale ranging from (1=strongly disagree/decreased substantially to 3=neutral/same to 5=strongly agree/improved substantially). The total raw score was used to evaluate overall quality of life for child and family (Range=26-130). A lower, overall score indicates a lower quality of life for the child and their family.

Within subjects comparison of average challenging behavior/task compliance, measured on a scale of 1-7 in which 1 is "Extremely Difficult" and 7 is "Exceptional" in the mattress technology on and off conditions

Comparison of average tolerance of mattress technology, measured on a scale of 1-7 in which 1 is "Extremely Poor" and 7 is "Exceptional", in the on condition compared to the median score of 4 (average toleration of mattress technology).

Comparison of average tolerance of the actigraph watch, measured on a scale of 1-7 in which 1 is "Extremely Poor" and 7 is "Exceptional", across treatment conditions compared to median score of 4 (average toleration of actigraph watch).

Comparison of ease of mattress technology use, measured on a scale of 1-7 in which 1 is "Extremely Difficult" and 7 is "Exceptionally Easy" in mattress technology on condition to median score of 4 (average ease of use of mattress technology).

Within subjects comparison of average difficulty for child to go to bed, measured on a scale of 1-7 in which 1 is "Extremely Difficult" and 7 is "Exceptionally Easy", in the mattress technology on and off conditions.