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What You Get with Helium Sleep

101-Night Sleep Trial

Lounge, nap, play, snooze, and snuggle, risk-free for 3+ months with our 101-Night Sleep Trial.

20-25 Year Warranty

We're proud to offer a 20-25 year warranty on all HeliumSleep mattresses with proof of purchase from the official HeliumSleep website or an authorized retailer.

Free Shipping & Returns

Your HeliumSleep ships fast — most customers receive their order in 2-5 days! Need to make a return? We'll schedule a free mattress pickup.

Mattresses Proudly Made in the USA

All of our mattresses are built in the USA by Nature's Sleep, a company that's been around for 20 years. (We're not going anywhere.)


Will Helium Sleep fit my frame or foundation? Specifications Expand/Collapse

Yes! All of our mattresses are made to industry-standard specifications, so they'll fit just dandy with your current furniture.

Foundation
Slatted Frame
Adjustable Base
Mattress Specifications Specifications Expand/Collapse

The Helium Sleep

Size Width Length Height Weight
Twin 96.5 cm
(38 in.)
190.5 cm
(75 in.)
28 cm
(11 in.)
58 lbs (27 kg)
Twin XL 96.5 cm
(38 in.)
203 cm
(80 in.)
28 cm
(11 in.)
62 lbs (28 kg)
Double 137 cm
(54 in.)
190.5 cm
(75 in.)
28 cm
(11 in.)
78 lbs (36 kg)
Queen 152 cm
(60 in.)
203 cm
(80 in.)
28 cm
(11 in.)
89 lbs (41 kg)
King 193 cm
(76 in.)
203 cm
(80 in.)
28 cm
(11 in.)
112 lbs (51 kg)
Cal King 183 cm
(72 in.)
213.5 cm
(84 in.)
28 cm
(11 in.)
112 lbs 51 (kg)
Split King 193 cm
(76 in.)
190.5 cm
(75 in.)
28 cm
(11 in.)
116 lbs (54 kg)

HeliumSleep Flex

Size Width Length Height Weight
Twin 96.5 cm
(38 in.)
190.5 cm
(75 in.)
33 cm
(13 in.)
78 lbs (36 kg)
Twin XL 96.5 cm
(38 in.)
203 cm
(80 in.)
33 cm
(13 in.)
83 lbs (37 kg)
Full 137 cm
(54 in.)
190.5 cm
(75 in.)
33 cm
(13 in.)
102 lbs (47 kg)
Queen 152 cm
(60 in.)
203 cm
(80 in.)
33 cm
(13 in.)
125 lbs (57 kg)
King 193 cm
(76 in.)
203 cm
(80 in.)
33 cm
(13 in.)
145 lbs (66 kg)
Cal King 183 cm
(72 in.)
213.5 cm
(84 in.)
33 cm
(13 in.)
145 lbs (66 kg)
Split King 193 cm
(76 in.)
190.5 cm
(75 in.)
33 cm
(13 in.)
156 lbs (72 kg)

HeliumSleep Luxe

Size Width Length Height Weight
Twin 96.5 cm
(38 in.)
190.5 cm
(75 in.)
33 cm
(13 in.)
76 lbs (35 kg)
Twin XL 96.5 cm
(38 in.)
203 cm
(80 in.)
33 cm
(13 in.)
81 lbs (37 kg)
Full 137 cm
(54 in.)
190.5 cm
(75 in.)
33 cm
(13 in.)
100 lbs (46 kg)
Queen 152 cm
(60 in.)
203 cm
(80 in.)
33 cm
(13 in.)
122 lbs (56 kg)
King 193 cm
(76 in.)
203 cm
(80 in.)
33 cm
(13 in.)
150 lbs (68 kg)
Cal King 183 cm
(72 in.)
213.5 cm
(84 in.)
33 cm
(13 in.)
149 lbs (67 kg)
Split King 193 cm
(76 in.)
190.5 cm
(75 in.)
33 cm
(13 in.)
152 lbs (70 kg)

HeliumSleep 3D Matrix®

Size Width Length Height Weight
Twin XL 96.5 cm
(38 in.)
203 cm
(80 in.)
30.5 cm
(12 in.)
n/a
Queen 152 cm
(60 in.)
203 cm
(80 in.)
30.5 cm
(12 in.)
122 lbs
King 193 cm
(76 in.)
203 cm
(80 in.)
30.5 cm
(12 in.)
150 lbs
Cal King 183 cm
(72 in.)
213.5 cm
(84 in.)
30.5 cm
(12 in.)
149 lbs
Split King 193 cm
(76 in.)
203 cm
(80 in.)
30.5 cm
(12 in.)
n/a

New! Still unsure? Take our Mattress Quiz
to find the perfect mattress for you.

Take Our Mattress Quiz

Got questions? WE'VE GOT ANSWERS.

Expand/Collapse What are the differences between The HeliumSleep, HeliumSleep Flex, HeliumSleep Luxe, and HeliumSleep 3D Matrix®?

All of our mattresses are backed with our 20-25 year warranty and feature the best in sleep technology so you wake up rested, refreshed, and ready to take on the day! Selecting the right HeliumSleep mattress will come down to the level of support and coolness you prefer.

The original 11” HeliumSleep is our most affordable mattress, built using research and feedback from tens of thousands of past customers. This mattress features a unique, aerated top layer of latex (non-allergenic) for better bounce and breathability, 2” pressure-relieving cool gel memory foam and a high-density, durable support core. Offering a blend of support and comfort with a medium-firm feel, this mattress works well for all sleeping styles, including side, back and stomach sleepers.

Tired of waking up hot? You’ll stay cool and comfy all night long on our 13” HeliumSleep Luxe, the Coolest Bed in the World™. It’s the only mattress with core & surface cooling technology, plus a full seven layers of comfort—including cooling gel memory foam, our patent-pending Ghost Ice Layer designed to sense heat and adjust throughout the night, and a plush cover infused with cooling fibers. With its medium-plush feel, this Luxe is best for side sleepers and back sleepers who love the feeling of snoozing on a cloud. Similar to the other HeliumSleeps, it’s also great for couples because of its low motion transfer.

Next up is the 13” HeliumSleep Flex, our best-selling hybrid mattress that combines the sturdy support of reinforced coils with the plush comfort of memory foam. If you’re used to sleeping on a traditional innerspring mattress, this is the perfect transition to the cooling comfort of gel memory foam! This medium-support mattress also features cooling fiber woven into its plush, quilted cover, for a cool-to-the-touch feel. The Flex is an excellent option for all types of sleepers, as well as couples that are looking for minimal motion transfer.

Finally, the new 12” HeliumSleep 3D Matrix® hybrid is our most luxurious mattress, featuring seven layers of exclusive patented technology for your best sleep ever. Craving a cooler sleep? The 3D Matrix layer features a thermal-conductive gel polymer that absorbs excess heat and transfers it away from your body. Need added support due to joint pain? 1” of soft transition foam cradles your body for amazing comfort, and the Ghost Bounce layer is responsive like latex (non-allergenic) and contouring like memory foam—some say it’s as close as you can come to floating without leaving the ground! The 3D Matrix

Expand/Collapse How does The Helium Sleep, Helium Sleep Flex, Helium Sleep Luxe, and Helium Sleep 3D Matrix® feel?

The Helium Sleep:
On a scale of Plush (1) to Firm (10), we rate The Helium Sleep is a medium-firm with a 6.5 feel out of 10. This offers an optimal balance for comfort and long-term support to help relieve hip and back pain.

HeliumSleep Flex:
On a scale of Plush to Firm, we rate The Helium Sleep Flex is a medium with a 6.0 feel out of 10, an ideal balance for all sleeping styles.

HeliumSleep Luxe:
On a scale of Plush to Firm, we rate The Helium Sleep Luxe is medium-plush and a 5.5 – 6.0 feel out of 10, achieving a perfect balance between firmness and a cooling, soft feel.

HeliumSleep 3D Matrix®:
On a scale of Plush to Firm, The Helium Sleep 3D Matrix® is plush with a 5.5 – 6.5 feel out of 10, providing exceptional cushioning to your pressure points while reducing the need to toss and turn.

Note: Not sure what you’re looking for? Learn more in our guide to mattress firmness.

Expand/Collapse What is a hybrid mattress?

The Helium Sleep Flex and HeliumSleep 3D Matrix® are both hybrid mattresses, which combine the sturdy support of reinforced, individually wrapped coils with the plush comfort of gel memory foam.

Expand/Collapse Do I still need a box spring/foundation?

All of our mattresses are made to industry-standard sizes, so they’ll fit with your current frame or foundation. However, we highly recommend our matching foundation/box spring for the best support. With its 9-inch height, this foundation ensures that your mattress lays flat and your investment stays in great condition.

Expand/Collapse Do all Helium Sleep come with a warranty?

Yes! Your HeliumSleep comes with an industry leading 20-25 Year Warranty with proof of purchase from the official HeliumSleep website or an authorized retailer.

Expand/Collapse Do Helium Sleep mattresses have a break-in period?

Once you open your HeliumSleep mattress from the sealed vac-pac packaging, it may take a few hours to a full day for it to fully expand, breathe and adjust to your room’s temperature. You can sleep on it almost immediately. Remember, a new mattress is a big change for your body, so it may take a night or two to get used to it.

In the colder winter months, your HeliumSleep may take up to 5-days to fully decompress. If it sat on a cold truck or in a cold warehouse, the temperature-sensitive materials will need plenty of time to take their natural form.

Expand/Collapse If the mattress is returned within the 101 Night Sleep Trial, do I get a full refund?

Yes! As long as you request a return within HeliumSleep’s 101-Night Sleep Trial period you will get a full refund on your mattress purchase!

Expand/Collapse Do I need to rebox the mattress if I return it?

Nope! Simply contact our friendly customer service team within the 101-Night Sleep Trial period and we’ll coordinate a free pick-up. After we take the mattress off your hands, we donate it to a charity near you, such as Goodwill or Salvation Army.