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Sleep Cycle – Seasonal Depression In Winter Why You Need More Sleep



Do you want to know why we want to sleep more when the weather turns cold?

This has less to do with being tired and more to do with our bodily rhythms and inner workings. It sounds ominous, but it’s actually quite simple. Our bodies know what’s good for it most of the time. There are automatic “cues” in our sleep cycle that it follows to perform certain functions.

Sleeping Pets

I hope everyone enjoyed the Holidays surrounded by family and friends. We’re not quite through the Holiday Season yet ~ at least in my family! Although we enjoyed Christmas Eve with family, Christmas Day was celebrated leisurely and quietly with just my husband and youngest daughter.

My oldest daughter, charming son-in-law and the grandkiddos were up visiting his family in Vermont.  We’ve been taking care of the Grand Dog “Muttley” while they were away, so I’ll be a little sad to see her go home. Although my 11-year old Fat House Cat will be able to reclaim his territory!

Needless to say, with all the various parties I’ve been happily attending, this Baby Boomer is a tad exhausted. If you follow me on Twitter, you know I’m usually a night-owl and up until the wee hours of the morning!

On a good day, I don’t want to rise with the chickens. My feet just don’t hit the ground running like they used to. In the winter months, it gets even trickier. Sleeping all morning can become a habit really fast.

Seasonal depression
in winter isn’t all that uncommon, it’s not because we’re lazy.

Depression and the Great Seasonal Sleep Cycle

Here’s an example of why we like to sleep-in come winter:

When the sun streams through the window in the morning, it wakes us up. Even if we decide to cover our heads and go back to sleep, the initial reaction to the sun was to wake. Our circadian rhythms tell us that we wake with the light of the sun.

In the evening, as the sun goes down, we begin to prepare for a time of rest. Well, our bodies do. When darkness falls, everything shuts down for the night so the cells can recharge. We think it is our conscious self that is tired so we go to sleep. But, in fact, our internal clock says that the city called “us” is closing its borders for the night.

There is a set pattern to these things. Now, factor in the location in which we live. I live in New England, and it can get pretty dreary here, especially when snowed in. In winter, the days are shorter and the nights are longer. We see less sunlight and experience SAD. When the sky is darkening, the body prepares for rest. In the morning, the sun rises a little later and we want to also.

The body continues to sleep because it sees no light streaming through the window. Unfortunately we still have to rise at six o’clock in the morning for work. So, something has to get us up and out.

The science behind all of this involves serotonin and melatonin, two neurotransmitters in the brain. Melatonin is produced when we sleep. Sleeping too much produces abnormal levels of melatonin. The more we sleep, the more we want to sleep because of the increase in this neurotransmitter.

During the summer, we experience higher serotonin levels. Serotonin is responsible for our mood. One thing that increases serotonin levels is vitamin D. Vitamin D is produced by skin cells due to sunlight.

When sunlight is in short supply, our serotonin levels fall and we don’t have so much energy or so many good feelings. Some people use devices called dawn simulators to get moving in the morning. They go off on a timed schedule and increase the intensity of their light until it is time for you to wake. The light triggers the body to wake up even though it is still dark outside.

As you see being extra tired during the winter months is actually quite normal. We desire to sleep more in winter because we get less light and serotonin and more melatonin.

I’ve been doing quite a bit of reading up on the benefits of taking serotonin, and have added a SAD light to my Amazon Wish List for my upcoming birthday present. If you or someone you know takes it ~ let me know what your experience has been. Of course, always consult your physician with any questions you may have.

About Cindi Moomettes

New England blogger and influencer from Connecticut and author of the multi-generational Moomettes Magnificents where she writes about Family, Grandparents and Grandchildren, home decor, Crochet, Knitting, DIY, crafts, family travel familiarization trips (FAMs), photography, social media and reviews. You can also find her at Moomettes Crochet Shop for the latest Handmade Fashion trends, Home Decor, Handmade Crochet Wash Cloths & Accessories. For food and recipes visit at her blog Frugal New England Kitchen ***Products and/or companies featured on Moomettes Magnificents may have provided product samples and/or compensation for consideration. All opinions are my own. Posts may contain affiliate links. See also Disclosure***


  1. Hi Cindi-

    I don’t know much about Serotonin levels, however I live in (sunny) south Florida and still like to sleep late! Like you I am usually up until the wee hours of the morning!!
    Am I just lazy??? LOL!!

    Love your blog

  2. Very interesting! I have been sleeping longer and I though it was just due to holiday fatigue-
    Thanks for the info!


  3. I wonder what form serotonin comes in. Is it a natural supplement of some kind? I know it comes bundled with anti-depressants. I’m trying to remember if St. John’s Wort is a serotonin booster. Don’t mind me…I’m just thinking out loud.

  4. That explains a lot. I have been sleeping so late since the kids have been on break from school. Things are going to be tough when they go back.

  5. Hi Cindi,

    I have been using the Uplift light that’s on your wish list for a few years now, due to SAD. It does help…just don’t go past 30 minutes. Let me know if you get it and I’ll tell you more of my experience. I did not know you could take serotonin as a supplement. I make sure and be diligent about my multi-vitamins, plus Vit D and fish oil….especially in the winter. And when the weather is decent, a good brisk walk is always a good idea. : ) Blessings!

  6. Hmm… I am sleepy all the time, but you are right… it does seem like a sleepier than usual time in the winter!
    Andrea would like you to read..Puppet Head on a Stick – Holiday EditionMy Profile

  7. Good comments under this article. I agree a good brisk walk in the winter sunshine helps to improve your mood. Wondering if you have actually started taking serotonin? I had low vit D levels so the doctor suggested taking more vit D to help my immune system. I didn’t know about the connection to vit D and serotonin.

  8. That’s an interesting article. When I was in college I studied in Scotland, which was grey and quite overcast most of the time. I’d say it definitely had an impact on my mood and temperament.

  9. SAD bothers me too and I’ve always wanted to try one of those lights. I’m glad we moved from the dreary west coast to sunny Alberta – sunshine is a HUGE factor for my moods!

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