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Morrison Outdoors
Big Mo 40 Sleeping Bag: 40F Synthetic - Kids'

4.5 out of 5 stars
4 Reviews

Out of Stock

Don't worry though, we have a lot more Kids' Sleeping Bags in stock than that.

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Big Mo 40 Sleeping Bag

The Big Mo 40 keeps your young adventurer warm on cold nights camping with a high-loft synthetic insulation and cozy design. The open- and close-cuff design lets your young one have freedom to use their hands, or tuck in to stay warm at night, and the two-way zipper makes temperature control simple.


  • A warm sleeping bag for your little adventurer
  • Durable ripstop nylon shell
  • Perfect for 40 - 60F weather
  • Two-way zipper for better temperature control
  • 42in length best suits young ones ages 2-4
  • Item #MOQ0005
100% ripstop nylon
hi-loft polyester synthetic (15.5oz)
Shoulder Circumference
[size 2-4 years] 36in
Hip Circumference
[size 2-4 years] 33in
Foot Circumference
[size 2-4 years] 38in
Bag Length
Draft Tube
yes, full-length
Pad Retainer
Stuff Size
[size 2-4 years] 15 x 6 x 6in
Claimed Weight
1lb 3oz
Manufacturer Warranty
1 year

Overall Rating

4.5 based on 4 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 0 reviews
5 Stars - 3 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

December 30, 2023

Worth It

I've used it several times

Kid has slept well without complaint. Better than I have.

bup120209565 b
3 out of 5 stars

March 15, 2022

Good product incorrect des

I returned this product before using it

It is a good idea for a young kids bag, but I purchased it with the expectation of down fill and light weight based on the description. It is synthetic and too bulky/heavy to work for me. Wish Morrison made a 40 degree down not just a 20.

Sean H
5 out of 5 stars

April 19, 2021

Great transitional sleeping bag

I've used it once or twice and have initial impressions

We have a 75 percentile 20 month old. Last year we were able to get by with heavy duty bunting, but couldn't find any other suitable options for her current size. We got this bag for some recent spring camping in the PNW, and this bag did the trick. We had to fold the sleeves up a little bit, and the neck was a bit large, but it was warm enough for our toddler to miraculously sleep through the night (~40 degrees outside the tent). She was nice and toasty when we got her out in the morning. We were nervous that switching from a cotton sleep sack to the sleeping bag material would be uncomfortable or wake her up but didn't seem to have any problems. I saw that some older models had synthetic options - we really really wished this was still an available option!

ghengiska g
5 out of 5 stars

February 22, 2021

Works as expected

I've used it once or twice and have initial impressions

I have petite 20 month old who I was trying to find a sleeping bag that will fit her now and beyond her 2nd bday. This sleeping bag is perfect! its long and I know its going to fit her a very long time. We went camping this weekend at death valley and temps got low 40s F. It kept her warm over the cotton long sleeve footie pjs I put her in. I only wish there was a way to efficiently roll back the long sleeves for the younger users. She was quite frustrated by not being able to grab her binki or water when she wanted it. Other than that she slept soundly through the not so windy parts of the night and early morning.

Katelyn Y