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Are Weighted Blankets Beneficial for Autistic Children?

May 16th, 2023 | by Mara Kenyon, MS, OTR/L

Mara Kenyon, MS, OTR/L

May 16th, 2023

Weighted Blankets and Autism: What You Need to Know

In the past few years, weighted blankets have transformed from a niche market to a genuine craze. The Gravity Blanket, a weighted blanket designed for adult use, raised over $4.7 million on Kickstarter in April 2017, and that was just the beginning. The weighted blanket had quickly cemented itself in the public consciousness as a tool to help stop endless nights spent tossing and turning. Additionally, weighted blankets have been suggested as a possible tool to help children with autism, in particular, improve their quality of sleep. 

Are Weighted Blankets Effective?

Do weighted blankets actually do anything, or is it all just a scam? And if they are effective, are they safe for children with autism to use? Weighted blankets seem to be everywhere now, but just because something can be done, doesn’t mean it should. Let’s take a look at what weighted blankets claim to do, and how they can be used safely.  

Are Weighted Blankets Beneficial for Children With Autism?

Sensory integration theory posits that deep pressure input provides a calming effect on the nervous system. Deep pressure provides the body with a firm tactile input, which is organising and calming, versus a light touch, which is typically alerting and stimulating.

Think of the difference between a big, squeezy hug and someone tickling you with a feather.

Deep pressure also activates the proprioceptive system, which is the sense responsible for body awareness. According to this theory, the increased proprioceptive input and deep pressure from a weighted blanket should produce a calming effect to help us drift off to dreamland. 

But Do Weighted Blankets Really Help Improve Sleep? 

The short answer: maybe. Few studies on the use of weighted blankets for autistic children have been completed, so it is hard to say, “Yes, this works definitively!” A 2015 study on adults receiving inpatient mental health treatment revealed a 60% reduction in anxiety when using a 30-pound weighted blanket[1]. This study did not look at sleep or autism, but suggests that weighted blankets do produce a calming effect.

On the other hand, a 2014 randomised controlled trial on autistic children revealed that total sleep time did not change when using a weighted blanket. Despite this, the children in the study reported that they liked the blanket, and their parents tended to report that they seemed to sleep better[2]. Ultimately, more research is needed to support the effectiveness of weighted blankets. All that being said, nothing in the research indicates that weighted blankets are harmful for autistic children, if used correctly. If your child likes it, use it! 

How Do I Use a Weighted Blanket Correctly?

The child’s safety is the most important thing to consider with a weighted blanket. A blanket that is too heavy for your child to remove may pose a suffocation risk. Make sure your child can easily remove the blanket independently.

How Heavy Should a Weighted Blanket Be?

Guidelines for weighted backpacks and weighted vests typically recommend no more than 10% of the child’s weight, but a higher blanket weight may be appropriate since the blanket is distributed across the entire body, not resting entirely on the shoulders. A good initial weighted blanket guideline is 15-20% of body weight, always starting on the lower side and adjusting. The other important thing is to listen to your child! We should never force adverse sensory experiences on our children, so if they say they don’t like it, maybe this may not be the tool for them.  Finally, using a weighted blanket on a child under 2 years old is not recommended. 

About the Author

Mara has always known she wanted to work with children, and decided to become an OT when she saw how much it helped her younger brother who is autistic. She feels empowered that every day is a new opportunity to make a difference for her clients and their families. When not at NAPA, you’ll probably find Mara playing one of the board games in her giant collection (she owns more than 70) or marathoning Netflix shows.

About NAPA Centre

NAPA Centre is a world-renowned paediatric therapy clinic with multiple clinics worldwide.

Additional References: 
  1. Tina Champagne, Brian Mullen, Debra Dickson & Sundar Krishnamurty(2015) Evaluating the Safety and Effectiveness of the Weighted Blanket With Adults During an Inpatient Mental Health Hospitalization, Occupational Therapy in Mental Health, 31:3, 211-233, DOI: 10.1080/0164212X.2015.106622 
  2. Gee, B. M., Peterson, T. G., Buck, A., & Lloyd, K. (2016). Improving sleep quality using weighted blankets among young children with an autism spectrum disorder. International Journal of Therapy and Rehabilitation, 23(4), 173–181. doi: 10.12968/ijtr.2016.23.4.173 
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