MOLLY MUTT Square Cat & Dog Stuff Sack, Medium/Large -

Eco Sustainable Molly Mutt Stuff Sack Mattress Maker

By Molly Mutt
Rated 4.4762 out of 5 stars
Size: Medium/Large
Size: Medium/Large

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$12.50Chewy Price

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About This Item


  • Zippered mesh bag that helps shape your old clothes, pillows, blankets, or towels inside the stylish duvet cover to create a comfortable homemade mattress.
  • Goes inside a Molly Mutt duvet cover for added style; can also be put inside Molly Mutt Armor Liner for water-resistant protection.
  • Environmentally-friendly option to buying a dog bed.
  • Made from 100% nylon and the entire mattress can go in the wash for easy cleaning.
  • Dogs love the bed since it's made from fabric that has owner's scent.

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Play Video: Learn More About Molly Mutt From Our Team of Experts
Learn More About Molly Mutt From Our Team of Experts

Questions & Answers

7 Customer Questions

Will the stuff sack stand up to a chewer without an extra cover?
Answer by ChewyApr 27, 2023
This mattress maker is made of 100% nylon and is durable. However, a determined pet can chew through this material.

Does this sack need to be inside a cover, or can it be used as is?
Answer by ChewyAug 11, 2017
The Stuff Sack goes inside a Molly Mutt duvet cover, or for added style; can also be put inside Molly Mutt Armor Liner for water-resistant protection.

What are the dimensions of the 'huge' size? thanks!
Answer by ChewyJan 22, 2019
The Huge measures 36 x 45 x 4.5 inches.

Can you fill this stuff sack with cedar bedding?
Answer by ChewyJun 25, 2018
This zipper mesh bag can be filled with cedar bedding, old clothes, pillow, blankets, or towels.

ReviewsWrite a Review

Rated 4.4762 out of 5 stars
42 Ratings
Would recommend to a friend

42 Customer Reviews

Rated 5 out of 5 stars
By MamaLynne on May 11, 2023

Great Idea!

The dogs are very happy to be sleeping on our old clothes! And I'm happy to have recycled them in a useful way. Also purchased the Waterproof cover/liner. Had a duvet cover from another company that has discontinued their beds.

Rated 5 out of 5 stars
By SavvyCowgirl on Apr 25, 2023

Great Item

Our second one! Love this zippered sack as it is well made and useful for more than a dog bed. First one was the jumbo and this one the next smaller size. Both equal in product quality and stitching.

Rated 1 out of 5 stars
By Ghb on May 27, 2023

Will use as dog bed washer protector

It’s just a mesh bag and I will use in my washer now

Rated 5 out of 5 stars
By MaplesButler on Dec 1, 2022

It is as described

It is a sack that holds stuff. Does what is described. Zipper is good (not the horrible kind that is hard to slide) and so far it has made it through being washed and hung dry with no issues. After with stuffing it full with a cheap comforter and some spare clothes + the molly mutt duvet cover, my dog spends much more time napping in the crate where we put this bed.

Rated 5 out of 5 stars
By Nita on Nov 1, 2022

Molly mate sack

My dogs love there resting place.I filled the sack with my wore out clothes and some blankets they fuse over who is going to sleep on it. They have decided to all sleep together on the large stuffed pillow.However,I did get a second sack and now everyone is really happy. I love the idea to stuff the bags with used clothes and things .Thanks for having such great products for us pet owners. Love Chewy and your great products.

Rated 5 out of 5 stars
By PetLover on Jan 15, 2022

Love this combo

This sack and duvet cover provide a great way to repurpose old clothes and keep them out of landfills. My cats use it as a cushion and for scratching. Great product. I own two.

Rated 5 out of 5 stars
By TayS on Jul 16, 2021

100% Recommend

10 out of 5 stars for any reason you can think of. The proof is in the pudding (aka pictures). I got a size small and it’s plenty big for us. Remember the duvet is purchased separately from the mesh bag but all the way around it is affordable, durable, SUSTAINABLE and beautiful! Plus the baby loves it and that’s what really matters the most.

Rated 5 out of 5 stars
By Rose on Jun 16, 2021

Love Love Love this sack

Using this stuff sack I've been able to clean all my dog beds by taking the stuffing out and put it in these sacks to wash in my washer and dryer at home. They've been used many times and I even left one stuffed and put it back in the dog bed liner I already had and still looks like new every time. Very durable, zipper is very sturdy, use hot water and hot dryer with no problems, and definitely will get more to go to my pup parents when they get their pup

Rated 5 out of 5 stars
By Kate on Jan 16, 2021

DIY orthopedic dog bed

At first I filled this sack with old blankets and t-shirts for my senior beagle, Maggie. She instantly took to it, but it made for a very heavy, lumpy bed. I ended up putting one of her older dog beds inside it, and got rid of all the blankets. Then I put it on a dog cot so she was elevated off the cold floor. Sadly, she passed on after 15 years of unconditional love in June 2019. Four months later we adopted our new pup, Ruby Roo. When my husband and I decided to get a thicker memory foam topper for our bed, I took the thinner topper (1.75” thick) and used scissors to cut it down the middle, length-wise. Then I folded it twice and stuffed it in this sack before putting the Molly Mutt cover on. The result was a very thick and squishy orthopedic bed, nice enough for me to lay my head on with my pup. The sack helped compress the memory foam, making it easier to fit in the cover. And it fits perfectly in Ruby’s dog crate! I wish I had thought of this for Maggie. Ruby gave me lots of kisses when I put her newly stuffed mattress in her “house” for the first time.

Rated 5 out of 5 stars
By GiGi on Feb 21, 2021

No more cheap liners!

I had two pet beds with poly fill but the cheap paper thin casing fell apart making the bed impossible to wash. I took the poly fil, tore it apart and put it in the molly mutt case, washed it and then put them in the cotton casing that came with the beds. Absolutely worth every penny.