A weighted blanket increases pre-sleep salivary concentrations of melatonin in young, healthy adults – a new study

A new paper published earlier this month, A weighted blanket increases pre-sleep salivary concentrations of melatonin in young, healthy adults provides yet another mechanism supporting the benefits of a weighted blanket for improving sleep and also reducing anxiety – an increase in melatonin. The authors share that “Weighted blankets have emerged as a potential non-pharmacological intervention to ease conditions such as insomnia and anxiety. Despite a lack of experimental evidence, these alleged effects are frequently attributed to a reduced activity of the endogenous stress systems and an increased release of hormones such as oxytocin and melatonin.”

Here are some of the details from the study:

• It was a small in-laboratory crossover study and included 26 young and healthy participants (15 men and 11 women)
• The heavier weighted blanket was about 12% of their body weight
• The following were measured: “salivary concentrations of the stress hormone cortisol, salivary alpha-amylase activity (as an indicative metric of sympathetic nervous system activity), subjective sleepiness, and sleep duration.”

The only difference found was a 1 hour increase of salivary melatonin from 10pm to lights off at 11pm. It was about 32% higher when using the heavier weighted blanket.

No other differences were found in terms of subjective sleepiness and total sleep duration.

The study concludes as follows:

Our study is the first to suggest that using a weighted blanket may result in a more significant release of melatonin at bedtime. Future studies should investigate whether the stimulatory effect on melatonin secretion is observed on a nightly basis when frequently using a weighted blanket over weeks to months. It remains to be determined whether the observed increase in melatonin may be therapeutically relevant for the previously described effects of the weighted blanket on insomnia and anxiety.

The authors only identified an increase in pre-sleep melatonin in this study. But keep in mind these limitations of the study: participants did not have insomnia or anxiety, and they were young (and melatonin declines as we age). The authors didn’t find an improvement in subjective feedback on better sleep and they did not measure subjective changes in anxiety levels – which I don’t find surprising.

However, as you’ll read below, many individuals in my community responded favorably when I posted this new study on Facebook, sharing how using their weighted blankets does improve their sleep and reduce their anxiety.  I share some of the anecdotal feedback below.

Feedback from real people: improved sleep, calm body, soothing and less anxiety

Here is some of the feedback from folks in my Facebook community:

Krys shares this: Ever since I started using a weighted blanket my sleep has improved. I think I need a heavier one. I believe the one I have is only 12 lbs. I was born in Poland, and we always had very heavy covers. Usually feather filled comforters, which made me feel secure and helped with sleep. I have a lot of past trauma and did not notice the weighted  blanket to be confining.

Christine shares this “I love my weighted blanket and sleep much better with it. I definitely sleep more soundly…less waking up. I bought it about 3 months ago and plan to use it year round. It is a faux fur glass bead filled one….it is super flexible and I can tuck it in and around all the nooks and crannies around my body. I considered a flatter, more stiff one but preferred the tucking option.” Christine’s weighted blanket is 15lbs and she plans to use an electric blanket to warm it up in winter (and switch it off /unplug it, before getting into bed).

Courtney shares this: “I started with a 12lb, then 20lb, now I have a 25lb one lol. I absolutely love my weighted blanket and can not sleep without it…I use it year round, it’s not hot but yet keeps you warm. And I feel like the weight keeps you from tossing and turning as much. It feels like a hug lol.”  The hug comment makes me wonder if they provide endorphin support too.

MaryKatherine shares this: “Wow that is seriously amazing. They definitely help me. I love weighted blankets…I feel almost instant calm in my body when I use weighted blankets. It does take 10-15 min for full effect.”

Tana shares this: “I love  my weighted blanket. It helps me relax. I sleep so much better.”

And then she shared this: “After this post I thought I should let my teenage daughter try my weighted blanket . She has anxiety and poor sleep habits. She loved it. I will be ordering her one.”  How wonderful is this?

Brenda shares this: “Love mine… I find it helps my AM anxiety. I’m kind of a hot sleeper, so I can’t keep it on for long, but I pull it up in the early morning, and it just gives a nice feeling of safety almost. I know a guy who does this with his dog when he’s having PTSD anxiety attacks.”

Willow shares this: “I have a cooling weighted blanket that I use all year. It is completely magical. I bought it hoping to sleep better but I didn’t expect it to be so incredibly soothing. Mine is 100% organic bamboo with glass beads. I find the cooling cover perfect all year. I honestly LOVE this improvement in my life.”

Katie shares this: “I love mine! I got one for each of my kids too. For my son I got a lighter one for kids, though he prefers my heavier adult blanket. He has ADHD and anxiety and really loves the weight. We all sleep deeper and fall asleep faster. Sometimes I use mine during the day when anxiety is especially high and it helps to calm my nervous system.”

Many folks are going to need additional nutritional support for their anxiety and insomnia

One person shared this: “I love my weighted blankets but it took awhile to get used to the heaviness on me… It’s not a miracle particularly if my stress and anxiety is much higher but I’d rather have it then not. It’s more helpful if I’m calmer.”

I agree. Many folks are going to need additional nutritional support for their anxiety and insomnia. This is where my work with addressing low GABA and low serotonin comes into play. Also, we may need to consider high cortisol and always need to address gut health, diet, caffeine/sugar/gluten intake, parasites, EMFs and everything covered in my book “The Antianxiety Food Solution.”

Here are a few (of many) useful resources from the blog:

• GABA and theanine mixture improves sleep and eases anxiety
• Rage, anxiety, cravings & insomnia in 11-year old girl with RAD/reactive attachment disorder: chewable tryptophan turns things around
• Lactium® (alpha-s1 casein hydrolysate/hydrolyzed casein) for lowering high cortisol, reducing anxiety and improving sleep

Feel free to use the search feature to find additional anxiety and sleep resources and success stories.

Resources if you are new to using GABA, tryptophan and other amino acids as supplements

If you are new to using any of the amino acids as supplements, here is the Amino Acids Mood Questionnaire from The Antianxiety Food Solution (you can see all the symptoms of neurotransmitter imbalances, including low GABA and low serotonin).

If you suspect low levels of any of the neurotransmitters and do not yet have my book, The Antianxiety Food Solution – How the Foods You Eat Can Help You Calm Your Anxious Mind, Improve Your Mood, and End Cravings, I highly recommend getting it and reading it before jumping in and using amino acids on your own so you are knowledgeable. And be sure to share it with the practitioner/health team you or your loved one is working with.

There is an entire chapter on the amino acids and they are discussed throughout the book in the sections on gut health, gluten, blood sugar control, sugar cravings, self-medicating with alcohol and more.

The book doesn’t include product names (per the publisher’s request) so this blog, The Antianxiety Food Solution Amino Acid and Pyroluria Supplements, lists the amino acids that I use with my individual clients and those in my group programs. You can find them all in my online store.

If, after reading this blog and my book, you don’t feel comfortable figuring things out on your own (i.e. doing the symptoms questionnaire and respective amino acids trials), a good place to get help is the GABA QuickStart Program (if you have low GABA symptoms). This is a paid online/virtual group program where you get my guidance and community support.

If you are a practitioner, join us in The Balancing Neurotransmitters: the Fundamentals program. This is also a paid online/virtual program with an opportunity to interact with me and other practitioners who are also using the amino acids.

Have you had success with a weighted blanket …for sleep issues and anxiety?

If you have seen these benefits with a weighted blanket:

• I’m also curious if you’ve observed reductions in sugar cravings, less anger issues, less irritability, less PMS symptoms, less negativity and less worry and panic attacks? These are all symptoms of low serotonin. I suspect that if there is an increase in melatonin there may also be an increase in serotonin (which is used to make melatonin).
• Have you noticed any other benefits?
• Be sure to share which weighted blanket you have, what percentage of your weight it is, and how often you use it.
• Have some of the nutritional approaches helped too?

If you have not seen benefits or didn’t like using one, please feel free to share your experiences.

If you’re a practitioner, do you recommend a weighted blanket to your clients/patients?

If you have questions please share them here too.