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UPDATE: Due to overwhelming support during our 20th Anniversary Sale, only a few units remain at the current price.
All shipments are sent free of charge and with tracking via well-known and reliable shipping companies within the United States, such as UPS.
You can return your clothes or shoes to us at any time within 30 days. Please contact our customer service team to ensure that this process runs smoothly and quickly!
You know the sight. Your cat curled up tight on the cold floor, tucked into a ball, right next to the bed you already bought.
She won't tell you she's cold. She just gets smaller.
Denwarm is an enclosed cave, so the warmth she makes stays trapped inside with her — no coaxing, no training. She walks in because something older than preference tells her to.

✓ They climb in without any coaxing
Cats and small dogs den by instinct. An enclosed space with a roof over it triggers something they were born with — no training, no treats, no waiting.

✓ Warmed by your pet, not by a heater
The cave traps her own body heat inside instead of letting it drift off into a cold room. Nothing to plug in. Nothing to switch on.

✓ No more cold floor in the morning
A 50mm base lifts her off the tile and away from the draft under the door. She's not lying on cold ground anymore.

✓ The roof stays up, week after week
Foam-structured walls hold the dome shape instead of collapsing flat like a soft sack. It looks the same in month three as it did on day one.

What you get today
Seasonal production run — once this winter batch sells out, restock pricing may change.
Bring Denwarm home today and give your pet the den she's been asking for all along.
30-day at-home trial
Try Denwarm at home for 30 days. If your pet doesn't take to it or it doesn't work as expected in daily use, return it for a full refund.
Where should I put it so my pet actually uses it?
Place it where your pet already naps. Somewhere quiet, out of foot traffic, with a wall or corner behind it. Pets take to a den faster when it feels tucked away.
How long before my cat goes in?
Most go in the same day, some within minutes. If yours is shy, drop in a blanket or toy that already smells like her and give it a few days.
Can my pet lie on top of it instead of inside?
Yes. The foam walls hold the shape well enough to sit on, so many pets switch between sleeping inside and resting on the roof.
Will it slide around on hard floors?
The base is wide and flat, so it stays put on tile and wood better than a light cushion. On very slick floors, a small rug underneath helps.
Our brand is turning 20, and we’re celebrating BIG!
For the next 24 hours only, we’re giving you massive anniversary discounts!
Up to 80% OFF – Today Only!
As promised to our loyal community, this is the moment you’ve been waiting for.
But hurry: if you can still add it to your cart, it’s in stock — once it’s sold out, it’s gone for good!
Don’t wait — This sale ends today!
I took advantage of the sale. My order came quickly and quality is good. I will order here more often if the sale is still here!
TESS O.
Great fit of the clothes and the quality is good! Use it daily for already 6 months and still super good. Highly recommended.
WENDY G.
I thought the pieces might just look good online, but after receiving them I can see the quality is even better in person. So happy with my Elena Harper Boutique order!
KAREN L.
Just opened my order from Elena Harper Boutique – the fabrics feel premium, and the cuts look great. My wife’s got the idea to buy the clothes. She is sitting next to me thinking: definitely made the right call.
KATY M.
First received the wrong size, and I sent them an email and they immediately sent a new one. Good customer support.
WALTER L.
Wore this blazer to a party and got so many compliments! It fits perfectly and feels super comfortable. I’m really happy with it - definitely one of my new favorites!
WENDY Q.
I took advantage of the sale. My order came quickly and quality is good. I will order here more often if the sale is still here!
TESS O.
Great fit of the clothes and the quality is good! Use it daily for already 6 months and still super good. Highly recommended.
WENDY G.
I thought the pieces might just look good online, but after receiving them I can see the quality is even better in person. So happy with my Elena Harper Boutique order!
KAREN L.
Just opened my order from Elena Harper Boutique – the fabrics feel premium, and the cuts look great. My wife’s got the idea to buy the clothes. She is sitting next to me thinking: definitely made the right call.
KATY M.
First received the wrong size, and I sent them an email and they immediately sent a new one. Good customer support.
WALTER L.
Wore this blazer to a party and got so many compliments! It fits perfectly and feels super comfortable. I’m really happy with it - definitely one of my new favorites!
WENDY Q.
I took advantage of the sale. My order came quickly and quality is good. I will order here more often if the sale is still here!
TESS O.
Great fit of the clothes and the quality is good! Use it daily for already 6 months and still super good. Highly recommended.
WENDY G.
I thought the pieces might just look good online, but after receiving them I can see the quality is even better in person. So happy with my Elena Harper Boutique order!
KAREN L.
Just opened my order from Elena Harper Boutique – the fabrics feel premium, and the cuts look great. My wife’s got the idea to buy the clothes. She is sitting next to me thinking: definitely made the right call.
KATY M.
First received the wrong size, and I sent them an email and they immediately sent a new one. Good customer support.
WALTER L.
Wore this blazer to a party and got so many compliments! It fits perfectly and feels super comfortable. I’m really happy with it - definitely one of my new favorites!
WENDY Q.
I took advantage of the sale. My order came quickly and quality is good. I will order here more often if the sale is still here!
TESS O.
Great fit of the clothes and the quality is good! Use it daily for already 6 months and still super good. Highly recommended.
WENDY G.
I thought the pieces might just look good online, but after receiving them I can see the quality is even better in person. So happy with my Elena Harper Boutique order!
KAREN L.
Just opened my order from Elena Harper Boutique – the fabrics feel premium, and the cuts look great. My wife’s got the idea to buy the clothes. She is sitting next to me thinking: definitely made the right call.
KATY M.
First received the wrong size, and I sent them an email and they immediately sent a new one. Good customer support.
WALTER L.
Wore this blazer to a party and got so many compliments! It fits perfectly and feels super comfortable. I’m really happy with it - definitely one of my new favorites!
WENDY Q.
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Didn't it fit? - No problem! You can always return or exchange. We offer a 30 day return or exchange policy if you are unhappy with your order for any reason.