Good for our small apartment
A smarter spare bed.
More comfort. Less bulk. Ready in under a minute, then packed away small enough to disappear into the cupboard when you don’t need it.
Double Helix™ Spare Bed
10,000+ Customers
- ✓ Supportive honeycomb sleep surface
- ✓ 4" (10cm) of plush cushioning
- ✓ Longer + wider with raised side rails
- ✓ Oversized carry bag for easier pack-down
- ✓ Built-in foot pump for <1 min inflation
60-day money back guarantee
OUR GUARANTEE
At KNAP we are committed to providing our customers with the best experience possible. That is why we have a 60 DAY MONEY BACK GUARANTEE. If you are unhappy for any reason, simply reach out to our customer support team to begin the return process and get a full refund on your purchase.
SHIPPING GUARANTEE
**Free shipping on ALL ORDERS over $140 AUD**
Standard Shipping ($7.50 AUD): 5-10 business days
Priority Shipping($20 AUD): 3 - 7 business days
**If your order arrives outside of our delivery guarantee, we will ensure to fully refund any shipping fees which you have paid for.**
WARRANTY GUARANTEE
We have lifetime warranty on all of our products. If your product breaks on you, we will replace this for you at no additional cost
60 Day Money Back Guarantee
Lifetime Warranty
Industry Leading Sleeping Pad Designers
Worldwide Shipping
60 Day Money Back Guarantee
Lifetime Warranty
Industry Leading Sleeping Pad Designers
Worldwide Shipping
Guests Are Sleeping Better
6 Reasons Why This Is The Spare Bed You Need
A Level of Comfort That Has Never Been Seen
- 10cm / 4" Cushioning
- Longer + Wider Sleeping Surface
- Raised, Body-Cradling Side Walls
More room to stretch out.
- Longer + Wider — 190 × 66cm
- Raised Side Rails
More sleeping space, in a snap.
- Snap Two Pads Together
- Create One Stable Double Sleep Surface
Stays inflated all night.
- 50D Abrasion-Resistant Polyester
- Heat-Bonded Seams
- Airtight TPU Construction
Inflated in under a minute.
- Built-In RapidPulse Foot Pump
- No Blowing. No Separate Pump.
- Moisture-Free Inflation
Packs down small.
- Just 950g
- Save Space. Carry More.
- Oversized Carry Bag for Easier Pack-Down
Why Double Helix is
the perfect choice.
The ultimate portable bed solution.
4 Inch Cushioning
Coupling Buttons
Side Sleeper Friendly
Raised Side Walls
Built In Footpump
Longer + Wider
Packs Down Small
Under 1kg
KNAP
Other Beds
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Foam Mats
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Specifications & Information
Everything you need to know about the Double Helix Sleeping Pad.
Double Helix Sleeping Pad
Thickness
10 cm / 4 in*
Sleeping Area
190 X 66 X 10 cm
74 X 25 X 4 in*
74 X 25 X 4 in*
Fabric
50D abrasion-resistant polyester
Inflation
Built-in foot pump
Inflation Time
Under 1 minute
Side Walls
Raised for added support
Coupling System
Side snap buttons to connect two pads
Packed Size
28 X 13 cm
11 X 5 in*
11 X 5 in*
Insulation
R4
Weight
950g / 33.5oz*
Carry Bag
Oversized for easier packing
*All weight measurements carry a ±10% uncertainty, accounting for systematic and instrumental variability
Technologies
TRY IT FREE
Yep that’s right! With our 60 day money back guarantee, if you don’t love our products, we will give you a full refund with FREE RETURNS. No strings attached. So what are you waiting for? Try our products with our 60 day FREE TRIAL.
Loved by a growing community of happy sleepers
Customer Reviews
Overall rating: 4.9 / 5 from 231 reviews.
Great product happy with it
Bought three for my daughter’s sleepovers. We clip them together and put everyone’s blankets on top. Much easier than pulling all the cushions off the couch.
Our grandkids love these. Simple idea, but it works really well for how we live.
I picked up the Double Helix after one too many nights where our adult kids visit for a couple of nights. The ability to connect them is why we bought a second one. I had to read the valve instructions twice the first time, then it was straightforward.
We needed an extra sleeping option because my son has two or three mates staying over. Easy to set up and still firm in the morning.
We don’t have a spare room, so these come out when the grandkids stay. Easy enough for me to set up on my own and put away once they’ve gone.
We have used ours a few times now. You do not get that sinking-in-the-middle feeling we had with our old inflatable. No waking up halfway to the floor, which was our biggest issue with the old air bed. A very practical spare-bed solution for a small home.
The reason I ordered one was simple: we need somewhere decent for one-night guests. The practical bits are what won me over. We keep it in the cupboard and can go from packed away to guest-ready very quickly. It has already survived several energetic sleepovers without any issues.
It stores beside our spare sheets instead of needing its own corner of the house. We do not have a spare room, and my son has two or three mates staying over, so this made sense. Since then, the snaps are handy when we need one larger sleep surface instead of separate singles. Exactly what we needed for a house without a dedicated guest room.
The pump being built in is such a good idea. I used to spend more time looking for our old pump than actually making the bed.
I have waited until we had used this a few times before reviewing it. I picked up the Double Helix after one too many nights where the home office has to become a guest room. The first thing I noticed was that we connect two for sleepovers and separate them again when the kids want their own space. No cords, batteries or separate pump makes the whole setup feel much easier. We also found that for a small apartment, being able to put the whole bed on a shelf is a huge win. A very practical spare-bed solution for a small home.
It is a much better solution than sacrificing the couch every time someone stays. Our house gets crowded quickly when friends visit from interstate, so I wanted something that could disappear afterwards. After being packed, unpacked and moved around the house repeatedly, it is holding up really well. For something that packs down this small, the comfort level is much better than expected. I like that we can own an extra bed without feeling like we own an extra piece of furniture. For us, the best part is not having to reorganise the house every time somebody sleeps over. It is now one of those things I am glad we have before we need it. I would like one more neutral colour, but functionally it has been excellent.
This came into our house because our parents rotate between the kids’ houses. We had tried other temporary setups before and they always felt like a compromise. This replaced the pile of blankets and sofa cushions we used to call a guest bed. It stores beside our spare sheets instead of needing its own corner of the house. They sit neatly side by side when connected instead of drifting apart overnight. It has solved a surprisingly annoying little problem in our house.
Easy to set up and still firm in the morning.
My sister brings the boys down on weekends sometimes, so we keep a couple here. Now she doesn’t have to fill the car with mattresses as well as all their stuff.
The cupboard space it saves is worth it alone. The first setup was slower than the ones after it.
For our house it makes more sense than buying another piece of furniture just for occasional visitors. It has already survived several energetic sleepovers without any issues.
We have used it repeatedly on timber and tiled floors and there are no signs of wear. That was really all I needed it to do.
Handy when a mate ends up staying after a few drinks. Takes next to no time to get a bed ready, and they’re not stuck on our tiny couch.
The reason I ordered one was simple: a friend misses the last train home. Compared with our old foam mattress, this is dramatically easier to store.
I was sceptical at first. I was looking for something practical for when someone needs to crash after a night out. The kids actually asked to sleep on these again the next night. Simple idea, but it works really well for how we live.
The quick version: The bag is roomy enough that packing it away is not a wrestling match. We stopped keeping a spare mattress under our bed after getting this. I would buy another one without hesitation.
Our old foam mattress was always in the way. This goes back in its bag and onto a shelf. The bag’s actually big enough too, which makes a nice change.
It is a much better solution than sacrificing the couch every time someone stays. We set it up the afternoon before guests arrived and it was still firm the next day. After being packed, unpacked and moved around the house repeatedly, it is holding up really well.
I bought this mostly for the times when our adult kids visit for a couple of nights. What surprised me most was this: we can make one, two or three sleeping spots without changing anything else in the room. Exactly what we needed for a house without a dedicated guest room.
I lay on it to see what we were putting our guests on. Honestly, comfier than I expected. Even on my side, my hip wasn’t pressing into the floor.
I have waited until we had used this a few times before reviewing it. The reason I ordered one was simple: my parents stay for a few nights. The first thing I noticed was that it gives us the comfort of a proper spare bed without storing something full-sized all year. I can have it inflated and ready before the guest has finished brushing their teeth. We also found that the modular setup is great because we are not locked into one giant spare mattress. It has made having people stay over much less of a hassle.
We bought the Double Helix after a run of weekends where my parents stay for a few nights. We had been using a mix of couch cushions, a bulky foam mattress and an old inflatable, and none of those options was particularly convenient. You do not get that sinking-in-the-middle feeling we had with our old inflatable. We set it up the afternoon before guests arrived and it was still firm the next day. The first night we used it, the whole setup felt much more organised because we could make the bed properly and still get the room back the next morning. We have three and can arrange them differently depending on who is staying. For a small apartment, being able to put the whole bed on a shelf is a huge win. The air stayed in all night even with someone who moves around a lot. It has solved a surprisingly annoying little problem in our house.
Set it up once and immediately ordered another.
No more dragging a foam mattress out of storage.
Honestly, the kids have claimed it for every sleepover. After being packed, unpacked and moved around the house repeatedly, it is holding up really well.
The kids have claimed it for every sleepover. A very practical spare-bed solution for a small home.
Honestly, stayed firm all night and packed away the next morning. They sit neatly side by side when connected instead of drifting apart overnight.
I picked up the Double Helix after one too many nights where we host New Year’s Eve. It is a much better solution than sacrificing the couch every time someone stays.
The reason I ordered one was simple: our small unit suddenly needs another bed. What surprised me most was this: the first thing I noticed was how evenly it supports you when you lie down. Very happy with it and the guests have been too.
The foot pump is simple once you have used it once. That mattered because the in-laws visit. It stayed supportive from bedtime to morning. Exactly what we needed for a house without a dedicated guest room. My only small gripe is that the foot pump took a couple of tries to get used to.
This came into our house because the couch is already taken. The practical bits are what won me over. We set it up the afternoon before guests arrived and it was still firm the next day. There is enough cushioning that it does not feel like a temporary emergency bed.
Two clipped together feel much tidier than two loose mattresses sliding apart. It looked like the easiest answer to our usual problem: we host New Year’s Eve. Since then, it is more practical than keeping a full spare mattress for something we only use occasionally. We use it often enough that it has already earned its cupboard space.
I bought this mostly for the times when guests stay after a late barbecue. We had tried other temporary setups before and they always felt like a compromise. The kids have climbed, bounced and flopped onto it and it still feels solid. Setup is quick enough that a last-minute stay is not a whole production. We finally got rid of the bulky roll-out mattress that lived behind a door. We have already recommended it to family who also hate storing spare mattresses.
Have a question ? We are here to help.
Looking for a quick answer? Our frequently asked questions are regularly updated for our most common customer queries.
What makes the Double Helix Sleeping Pad different?
The Double Helix is built for homes that need a comfortable extra bed without the bulk of a traditional spare mattress. It combines 10cm / 4" of cushioning, a longer and wider sleeping surface, raised side walls, and a supportive honeycomb ribbed design — while still packing down small enough to store away in a cupboard, wardrobe, or under the bed.
Is the Double Helix comfortable for side sleepers?
Yes. The full 10cm / 4" thickness helps keep your hips and shoulders off the ground, while the ribbed honeycomb surface distributes your weight across the pad for a more supported feel throughout the night.
How do I inflate the Double Helix?
The Double Helix has a built-in foot pump, so there’s no need to inflate it by mouth or carry a separate manual pump. Simply open the pump intake and repeatedly press the built-in pump with your foot or hand until the pad reaches your preferred firmness. Refer to the included user manual for more details.
How much does the Double Helix weigh?
The Double Helix weighs 950g, making it easy to transport without sacrificing the cushioning and sleeping space that make it comfortable.
What material is the Double Helix made from?
The Double Helix combines luxuriously comfortable cushioning with tough 50D abrasion-resistant polyester, designed to handle everyday indoor use, from kids’ sleepovers to overnight guests, while remaining lightweight and easy to pack away.
As with any inflatable sleeping pad, we recommend checking the floor for sharp objects, toys or debris before setting up to help protect your pad and keep it in great condition.
How warm is the Double Helix?
The Double Helix has R4 insulation rating, helping reduce heat loss into the ground and making it suitable for cooler nights.
Can I connect two Double Helix pads together?
Yes! Built-in coupling buttons along the sides let you snap two Double Helix pads together, creating a wider, more comfortable shared sleeping space. And because each pad is inflated independently, you avoid the bouncing and movement you'd typically get with one large inflatable mattress.
What do the raised side walls do?
The raised side walls help create a more secure sleeping area and keep you centred on the pad as you move throughout the night.
What if I am not happy with my order?
At Knap we have a 60 day money back guarantee. This means you have 60 days to request a return. Simply reach out to our support team and they will guide you through our simple return process.
support@knapoutdoors.com