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  • Works with a 79-in. by 30-in. mattress (sold separately)
  • Bedding includes an insulated top quilt, an attached top sheet and a fitted mattress pad
  • Comes with an inflatable headboard


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Best Use Camping
Material(s) Polyester
Dimensions 83 x 78 inches
Weight 6 pounds
Rated 5 out of 5 by from Worked great! Used for three nights in mild climate - worked great! Packed up fine and stored well.
Date published: 2015-10-11
Rated 5 out of 5 by from Ultimate car camping luxury It doesn't get any better than this. I spent 4 days up in the mountains with this sleep system in an REI Base 4 tent. Easy set-up. It's just the opposite of a claustrophobic mummy bag. The whole system is expensive, compared to alternatives from other retailers, but the quality I have come to expect from REI is there with this product. Useable temperature range of 70° F to 40° F. More with jammies or thermals. Some people have difficulty sleeping on a inflatible mattress. Inflated firm, and you feel as if you will roll off. In the middle it can feel wobbly. Too weak, and you bottom out when you sit up. I am sometimes like this. My fix? I fully inflate the mattress, then put my REI Camp Bed 3.5 (XL) on top of it. After the 3.5 is fully inflated, lay down on it with the valves open. When the air stops escaping (or maybe before) close the valves. The foam inside and remaining trapped air will give you plenty of support. The fitted pillow top sheet will fit over the pair, with the straps going around the corners. Soild bed with plenty of comfort and support. If you want a more rugged bed, use a pair of REI Camp Bed 3.5s (XL) instead of the inflatable mattress. No pumping!
Date published: 2016-09-28
Rated 3 out of 5 by from OK i bought this without reading the fine print, there is no inflatable mattress that comes with it, goes over one - so felt a little stupid for what it is did not feel worth it, but i didn't return it because it was my fault for not checking
Date published: 2017-01-11
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Will a blue foam sleeping pad fit underneath the mattress pad for additional warmth (and still have the mattress pad be able to stretch across all the corners)?

Asked by: ecarl65
Yes, the Blue Foam Pad will fit underneath the mattress pad. It will be slightly shorter than the mattress pad by about 6 inches and narrower by 4 inches.
Answered by: REIservice
Date published: 2016-05-20

I'm confused.  Based on the first question, it seems that an air bed "is" included with this system?  Or do you have to buy it separately as it says in the product description?  If you have to buy separately, what product do you recomend.

Asked by: dmorris4
The air bed is not included. We recommend the REI Relax Air Bed - Single:
Answered by: REIservice
Date published: 2016-07-24

What is the rated temperature of this sleep system, as most bags have the TEMP rating. Can you please advise on that. I already own this, and Fall is here and I do not want to end up freezing....

Asked by: cbhuppen
​This sleep system is rated to 40 degrees Fahrenheit.
Answered by: REIservice
Date published: 2016-10-14

Do you sell the foam pad separately? If so, how much?

Asked by: Brad Osborn
We unfortunately do not sell the fitted mattress pad separately.
Answered by: REIservice
Date published: 2017-03-01

How thick is this mattress?

Asked by: Alan N
This bedding is compatible with a 79 x 30 x 6 inch mattress (sold separately).
Answered by: REIservice
Date published: 2017-03-01

Is there a temperature rating on this sleep system?

Asked by: ecarl65
The top quilt that comes with the Kingdom Sleep System is rated to 40 degrees Fahrenheit.
Answered by: REIservice
Date published: 2016-10-05

what is the weight and compressability of the top quilt and what is the fill made of

Asked by: oberonwhitetail
The top quilt weighs 3lbs. 9 oz. and the fill is a spun synthetic. This quilt is designed for car camping so it does not compress down very small.
Answered by: REIservice
Date published: 2016-10-12

Just a quick heads-up: the dimensions listed for the single are incorrect - shouldn't they be 79" L x 30" W x 6" H? Please confirm.

Asked by: Garrett Gadget
The sheet is 83" wide at the top. It tapers down to about 48" at the foot. The length is 78". There are two toggles at the foot area to keep the sheet in place. The toggles allow the sheet to be removed for washing. The top comforter is 81"wide at the top. It tapers down to 30" wide (with some stretch) at the foot. It is 78" in length.
Answered by: REIservice
Date published: 2017-01-27
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