BG goes up while I sleep

By waricks Latest Reply 2010-11-12 00:37:34 -0600
Started 2010-11-03 20:38:05 -0500


I tried to search for this subject but did not find what I was looking for. My question is Why does my BG go up while I am sleeping? When I go to bed I am in the 140s and when I get up I can be anywhere from 160 to 170. Does anybody else have this problem?


22 replies

figment84 2010-11-11 13:40:29 -0600 Report

Hu Warwicks,

Though I am a type 1 and insulin dependent, I hope I can answer your question. My blood sugar will always ALWAYS rise in the middle of the night. If I went to bed at 100 I would wake up at 250. There are two things working against me. 1-My insulin wears out by the morning time and two this is about the time your cortisol rises. Cortisol is meant to be the greatest in the morning to give a person energy to get out of bed, but it also raises your blood sugar. I bet you sugar is stable until the last 2-3 hours of sleeping. Hope this helps!

waricks 2010-11-12 00:37:34 -0600 Report

Thanks for your reply - It does help and I have been getting up in the middle of the night to test and you are right. My BG actually does go down for a while at night - last night it was 104 but when I got up a few hours later it was back up to 136. Thanks again.

chopi 2010-11-04 18:46:53 -0500 Report

I also take 1000mg metformin twice a day. I found if I have a small glass of low carb milk and 3-4 sugar free low carb cookies around 9 pm my BS is much better when I wake up. Another great bed time snack I like is a small bowl of carb smart ice cream.

whitetigress 2010-11-04 09:09:36 -0500 Report

You do not provide very much information about yourself and answering this question may be difficult. For example, are you on insulin or oral meds? Are you on metformin or something else? Every med responds differently in your body.

waricks 2010-11-04 13:44:21 -0500 Report

Oh More about me… Well I could go on but I will just stick to your questions. I am taking 1000mg Metformin twice a day. In the morning I take 10 mg lisinopril and 25 mg Hydroclorothiazide. Along with that I take two tablets of multi-betic a huge flax seed oil pill, 500 mg cinnamon and a low dose aspirin. My work schedule fluctuates and I have not been able to take my meds at the same time everyday or eat at the same time. It is very difficult to do with the way my days seem to go. I also walk 30 min 3 times a week if I can get it in and I am trying to work with my boss to help make a schedule that is more compatible with the new changes I need to make. but he is difficult to deal with.

I hope this helps.


whitetigress 2010-11-05 20:33:07 -0500 Report

A fluctuating schedule can be frustrating and it can be hard on your body: stressful. Have you tried taking the metformin before going to bed? This should help to prevent the morning difficulties. I have noticed that your BS has gone down, congratulations Bill!

waricks 2010-11-07 16:37:59 -0600 Report

I have not tried to take it before bed - never thought of it really. I was just told to take it twice a day so I figured on in the morning and one around dinner. I will have to try it.

CaliKo 2010-11-04 09:03:20 -0500 Report

My CDE recommended (and it worked) a 15 gram carb snack at about 10 or 11 p.m. I found it has to be a complex carb with a little fat or protein, fruit doesn't work for me at bedtime. I usually eat a whole wheat tortilla with a little margarine or a whole wheat mini-bagel with cream cheese. When I get up at 5 a.m. my BG is usually 90-110. The longer I sleep, the higher it goes. Good luck.

GabbyPA 2010-11-04 08:29:28 -0500 Report

This is one of the most common aggravations for so many of us. I have it also and it's called Dawn Phenomenon. James has given you a great list of discussions on it and I am sure they will help. It is something that nature does for us to make sure we are up and ready to go in the mornings, because as natural beings, our next meal might not come for a while. We don't suffer that issue so much now but our bodies still do it.

jayabee52 2010-11-04 02:53:26 -0500 Report

Howdy Bill

it is likely from one or another thing going on with your body. It could either be "the Dawn phenomenon" (aka the "Caveman effect") or the "the-somogyi-effect" (commonly aka " a Liver dump") You can read a Web MD article on it here:

Should you wish to do your own search you might wish to put "Dawn phenomenon" in the search box.

I pray this helps



klfrcmom 2010-11-04 08:19:08 -0500 Report

My Diabetes educator says that it's common for Type2 to have Leaky Liver through the night… it's common and all you can do is learn how to adjust for it

waricks 2010-11-04 05:49:54 -0500 Report

Thanks all for your replies - I have heard of the Dawn Phenomenon but was wondering if there was anybody here that could give me advice on it. Sure enough I was not let down. I will try the almonds and I know I do need to stay more hydrated, that is a weak area for me.

What should my bg be at for bed time. I am still learning about the right levels. I know that I probably still eat more carbs than I should. I am not sure I understand the whole carb exchange thing. My wife has gotten several Diabetic and vegetarian cook books and I just eat smaller portions than I used to eat. I want to take a CDE class to help me get all this straight but I have no insurance and the class at the local hospital is almost $1000.

Thanks again for the advice - it all helps!

CaliKo 2010-11-07 16:48:44 -0600 Report

I don't see an answer to the bedtime glucose question. I'm at home now, so I have my chart from my CDE class. It gives numbers for people without diabetes, and recommended targets from American Diabetes Assoc. and also American College of Endocrinology. Many of the people on this site go with the stricter ACE guidelines, but they don't list a bedtime target on the chart I have. Here's what it says:

People without diabetes:
Fasting and before meals: less than 100
1-2 hours after meals: less than 140
Bedtime: less than 120
A1C: Less than 6

Suggested ADA Goals:
Fasting and before meals: 90-130
1-2 hours after meals: less than 180
Bedtime: 110-150
A1C: less than 7

Suggested ACE Goals:
Fasting and before meals: less than 110
1-2 hours after meals: less than 140
Bedtime: —-
A1C: less than 6.5

Hope this helps! Good luck

GabbyPA 2010-11-04 08:34:32 -0500 Report

That price for a class is horrible! Check with the Take Charge of Your Diabetes website and see if there is a class offered in your area. You might have to contact them in a direct email. I went to their class here and it was 2 hours one day a week for 9 weeks. I got a great book, great teaching and we had our weight, BP and Glucose levels tested to see our progress with what we were learning. It was only $75 and I was able to bring a support person with me.

I have notes from my classes on the site here so check them out. They are not as good as going to a class, but it is a starting point. I have 7 classes listed here They should help you get a foundation.

waricks 2010-11-04 13:51:09 -0500 Report

I thought the price was crazy as well. It is $230 for an initial one on one with the CDE (which is required for taking the class) and then $700 for the class which is one all day class from 8:30 to 3:30 and then two one on one follow ups with the CDE afterward. I am not sure if that sounds like a good deal or not but no way I can afford that.

GabbyPA 2010-11-07 08:28:00 -0600 Report

That is still insane. Unless you are getting one on one and a nutritionist private meeting and personal trainer.....well, you get my point. That is robbery. Here is the TCOYD site see if they offer a class in your area.

jayabee52 2010-11-04 15:39:35 -0500 Report

From a learning stuff standpoint it sounds horrible. Sitting for 5 hrs in a classroom for doesn't sound appealing to me. (then again it never was as I also have ADD) After a while I would get numb on the bottom and dumb on the top, and even if I took notes it wouldn't be good.

What Gabby went through, the Take Charge of Your Diabetes, (often abbreviated TCOYD. Here's a link to them: sounds much better from an educational standpoint. I've had the one day class years ago but I couldn't learn all that stuff that fast. What a waste. I don't know what mine cost cause at the time I had great health insurance and they picked up the cost.

sNerTs1 2010-11-03 22:38:23 -0500 Report

I have found that if I drink enough water throughout the day, my sugars level right out and I dont have as much as a fluctuation as if I do not stay hydrated. I too eat something before bed, almonds mostly, not a radical amount, just a small amount seems to keep things even for me. I hope this helps.

Rich 2
Rich 2 2010-11-03 22:24:14 -0500 Report

Waricks, sorry to hear your glucose jumps at night, but you're not alone. I normally get up in the middle of the night for an hour or so, and when I test when I first get up I'll be at, say, 100 or 120, and when I'm ready to go back to bed an hour later, I'm at 230 — without eating anything. It's no fun!

alanbossman 2010-11-03 22:15:00 -0500 Report

Hi and welcome to DC family i do not have this problem but before you go to bed eat a handful of nuts like walnuts or almonds it should help. Also your BS is a little high before you go to bed you need to get it lower.

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