Zempire  Monstamat King Single 3D Sleeping Pad

$180.00
Members get an est. $18.00 in rewards

The better you sleep at camp, the more fun you'll have the next day. Wake up recharged with the Zempire Monstamat King Single 3D Sleeping Pad. It's long and wide for those who like room to spread out.

Color: Charcoal/Acid Green
Quantity

Members get an estimated $18.00 (10%) back on this item as a part of your annual .

Members get an estimated $18.00 (10%) back on this item as a part of your annual .
To buy,  sign in as an REI Co-op Member or join now.
Location Image of color Charcoal/Acid GreenLocation Image of color Charcoal/Acid GreenLocation Image of color Charcoal/Acid Green

Features

  • 30-denier superstretch ripstop polyester surface molds to the contours of your body, creating a more comfortable sleeping surface that feels like memory foam
  • Heavy-duty, 75-denier TPU polyether film-laminated base provides durability; cross-cored foam allows the mat to self-inflate quickly
  • Luxurious stretch fabric improves comfort and minimizes noise
  • 360° one-way valve allows you to add more air when self-inflating and prevents air from being sucked back in when deflating; it can be set to 3 positions for ease of use
  • 3D vertical sidewall construction allows the internal foam to expand fully; this sidewall expansion also reduces surface pressure, creating a comfortable cushioning effect
  • Includes carry bag and repair kit

Imported.

View the Zempire Monstamat Product LineView all Zempire Camp Mattresses

Technical Specs

Best Use

Camping

Sleeping Pad Type

Self-inflating

Sleeping Pad Shape

Rectangular

Insulation Type

Open-cell Foam

R-Value

10.5

Repair Kit Included

Yes

Stuff Sack Included

Yes

Packed Size

10.2 x 31.9 inches

Pad Thickness (in.)

4 inches

Inflatable

Yes

Dimensions

78 x 30 x 4 inches

Weight

7 lbs. 15 oz.

Gender

Unisex

Sleeping Capacity

1-person

Reviews

39 reviews with an average rating of 4.9 out of 5 stars

83% 5 of 6 reviewers recommended

Write a Review

Adding a review will require a valid email for verification

Average Product Weight

LightweightHeavy

Average Ease of Use

Difficult to useVery easy to use
Triplebock
Age:45–54
Weight:175–200 lbs.
Height:6'0"
Rated 5.0 out of 5 stars
10 months ago

Most comfortable sleeping pad I've ever used

This thing is way too big to go backpacking, of course, but it's longer, wider, and thicker than any Thermarest-type pad I've ever used. I'm 6 feet tall, and I had plenty of room for a normal sized pillow on the pad while my feet stayed on the pad at the other end. I appreciated the quieter, softer material. It's thick enough to cushion your hips if you sleep on your side. The valve is really easy to use. I used this for a week straight and have not experienced any leaking of air. It got cold up in the mountains and this pad kept the cold air from coming up underneath me.

Age:45–54
Weight:175–200 lbs.
Height:6'0"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Vonster
Location:Midland, TX
Age:55–64
Weight:175–200 lbs.
Height:6'2"
Rated 2.0 out of 5 stars
2 weeks ago

The dreaded air leak after 3 nights.

Not very puncture resistant Was extremely comfortable at first, but leaked air after being used 3 times on a living room floor. (Laminate Plank). On the plus side, even deflated it offered enough cushion to continue to sleep. Like every inflatable sleep system it has the fatal flaw of the dreaded slow leak pinhole. Weight is not an issue so I am going back to a trusty Coleman Cot and foam pad. Very comfortable but hard to roll up Liked the "one way" switchable valve system for inflating and especially deflating as it kept the air from coming back in while rolling it up. I would give it a 5 stars for comfort, but think the cost to reliability ratio brings the overall rating down too 2 STARS.

Age:55–64
Weight:175–200 lbs.
Height:6'2"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Anonymous
Rated 5.0 out of 5 stars
3 years ago

So comfortable

I have tried a lot of camping mats over the years and this one is hands down the most comfortable. It’s almost as good as a proper mattress. I replaced my foam swag mat and leave it in my swag and because of the 2 way valve the mat rolls flat and my swag packs down smaller than it used to with the original mat. Great mat. Easy to use and easy to pack up.

Becs13
Rated 5.0 out of 5 stars
9 months ago

Happy Sleeping

Last year I purchased a monstamat and stretcher which was so comfy to sleep on. This year I have purchased the same set up for my son. He also uses the mats when he has friends for a sleepover. Easy to inflate and very comfy and warm to sleep on. Very happy with our purchase. Can’t wait to take the second mat camping this summer.

Renee
Rated 5.0 out of 5 stars
2 years ago

Uncompromising on comfort.

The Monstamat is an amazing mattress. Easy to inflate and fast to pack away. I cant believe a 100mm mattress folds away so small. Extremely comfortable, 80kg and I dont touch the ground.I bought the king single and Im glad to have the extra bit of width. Expensive but well worth the money.

Simon H.
Rated 5.0 out of 5 stars
3 years ago

Best night sleep.

Easy website to buy from, super fast delivery. The mattress took a while to self inflate first time, as it was factory packed, but came up much faster second time around. Very comfortable to sleep on, great quality materials. The best camp sleeping mat I have ever had.

Brittany C.
Rated 5.0 out of 5 stars
2 years ago

Zempire Monstamat King Single Self-inflating Mattress

This mattress is super comfortable and I love that its self inflating. However, its a little on the pricey side and takes 2 people to pack up a king single size because it is a task and a half. Overall I would recommend, theres just some improvements which can be made.

Denise D.
Rated 5.0 out of 5 stars
2 years ago

Definitely recommend this mattress!

After trying air beds, foam mats, and other self-inflating mattresses I watched a video detailing this bad boy. So glad I purchased one! So comfortable! So easy to roll up too because of the one way valves. Would recommend this to anyone who wants a decen

Volf
Rated 5.0 out of 5 stars
2 years ago

Fantastic!

My husband and I were looking to upgrade our sleeping arrangements and after much consideration we chose this KS Monstamat paired with the LRG speedy bed and had brilliant sleeps on them while camping for a few weeks over summer. The valve is excellent. I

Anonymous
Rated 5.0 out of 5 stars
3 years ago

Sleep well

I have not camped in well over a decade, so when my husband told me he wants to camp again, I was adamant we would get only the best sleep mats! We tried them out for the first time last weekend and the Monstamat was divine, totally recommend it.

1 - 10 of 39 Reviews

Questions & Answers

Loading Questions...
10% co-op member reward: $18$18 Member Reward
$30Member Bonus Card

This purchase pays for membership!

$18

10% Reward

on this and every eligible full-price item*

+

$30

Bonus Card

valid for 30 days after joining*

=

$48

Value

Buy a lifetime $30 membership and make a $50 purchase by Sep 07, 2026.*

Keep shopping