S4 Nebula Medium Soft Mattress in a modern blue bedroom setting on an upholstered platform bed frame.
S4 Nebula Medium Soft Mattress in a modern blue bedroom setting on an upholstered platform bed frame.
Exploded view of the S4 Nebula 12" Hybrid Mattress layers showcasing comfort foam and pocketed coil system.
Exploded view of the S4 Nebula 12" Hybrid Mattress layers showcasing comfort foam and pocketed coil system.
S4 Nebula Luxury Hybrid Mattress corner cutaway view showing cooling foam layers and pocketed coil support.
S4 Nebula Luxury Hybrid Mattress corner cutaway view showing cooling foam layers and pocketed coil support.
Medium Soft 12 inch Hybrid Mattress in a minimalist bedroom setting on a dark grey platform bed.
Medium Soft 12 inch Hybrid Mattress in a minimalist bedroom setting on a dark grey platform bed.
S4 Nebula 12 inch Hybrid Mattress side view featuring black diamond-quilted fabric and blue accents.
S4 Nebula 12 inch Hybrid Mattress side view featuring black diamond-quilted fabric and blue accents.
Luxury 12 inch Hybrid Mattress shown on an adjustable base with the head elevated in a bedroom setting.
Luxury 12 inch Hybrid Mattress shown on an adjustable base with the head elevated in a bedroom setting.
Internal layers of the S4 Nebula Hybrid Mattress showing multi-layered cooling foam and reinforced coils.
Internal layers of the S4 Nebula Hybrid Mattress showing multi-layered cooling foam and reinforced coils.
Medium soft S4 Nebula Hybrid Mattress in a modern bedroom setting on a minimalist upholstered platform bed.
Medium soft S4 Nebula Hybrid Mattress in a modern bedroom setting on a minimalist upholstered platform bed.
Profile view of the 12 inch S4 Nebula Hybrid Mattress featuring black diamond-quilted fabric and blue trim.
Profile view of the 12 inch S4 Nebula Hybrid Mattress featuring black diamond-quilted fabric and blue trim.
S4 Nebula Luxury 12" Hybrid Mattress – Medium Soft

Brand iDealBed

$699.00
$1,399.00
Save $700.00
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Best For

Side & Combination Sleepers 

Firmness

Medium Soft Comfort
Only 18 left in stock
OUT OF STOCK
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Only 18 left in stock

We’ll ship your order within 2–4 business days.

10 Year Warranty

10-year non-prorated warranty.
Title

Free USA Wide Delivery

We offer free delivery on orders over $100. Ready to ship in 2-4 business days.

Product Description

The iDealBed S4 Nebula 12" Medium Soft Hybrid Mattress greets you with a cloud-like pressure point relief feel that side and combination sleepers adore. 

Its medium soft wrapped coil comfort curve balances plushness with responsive lift, so you never feel stuck. 

Inside, layers of gel-infused cooling memory foam pair with iDeal Air Adapt® foam to draw heat away, while an Aloe-infused Smart Temp® Tencel cover stays cool-to-the-touch. 

Moreover, an individually wrapped coil system anchored by EdgeGuard foam delivers optimal spinal alignment support and isolates motion for couples. 

Because of this synergy, sleepers with hip or shoulder tension can experience genuine pressure relief in a hybrid mattress. 

And, every Nebula arrives with a 120-night risk-free trial, free USA shipping, and a 10-year limited warranty. So you can buy iDealBed S4 Nebula online with total confidence.

Mattress Size

✅ Twin: Provides a comfortable sleep space for one child or adult.  

✅ Dimensions: 40" wide x 76" long.

 

✅ Twin XL: Perfect for taller individuals, ensuring a comfortable sleep.

✅ Dimensions: 40" wide x 81" long.

 

✅ Full: Children, Single Adults, Adults with Children and/or Pets

✅ Dimensions: 55" wide x 76" long.

 

✅ Queen: The most popular size, providing ample space for two adults to sleep comfortably. 

✅ Dimensions: 61" wide x 81" long.

 

✅ King: Experience generous space without crowding your partner. 

✅ Dimensions: 78" wide x 81" long.

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" MEMORIAL10"
key mattress benefits
Advanced Cooling Technology

Equipped with iDeal Gel Reactiv Foam and a Smart Temp® Cooling Cover, the mattress features advanced airflow and thermal gel for temperature regulation, ensuring a cool and comfortable sleep.
Dual Response Pocketed Coils

iDeal Contour Dual Response Pocketed Coils provide targeted support with independent coil movement, minimizing motion transfer and supporting the back, shoulders, and hips.
Hypoallergenic, Easy-Care Cover

The Smart Temp® Cooling Cover, made of breathable, Aloe Vera-infused Tencel fabric, is hypoallergenic, soft on the skin, and has a machine-washable zip-off design for easy maintenance.
Customizable Comfort and Support

Combines iDeal Gel Reactiv Memory Foam and iDeal Air Adapt Memory Foam to conform to your body’s natural curves, delivering personalized comfort, pressure relief, and balanced support.
Medium Soft comfort

Perfect for those who prefer a soft comfort level, but not too soft. "Medium Soft" is the sweet spot.

Dynamic personalized support

Individually wrapped coils cradle your body's natural curves for personalized support, reducing pressure points in your shoulders and hips.

 

SmartTemp cooling technology

Advanced thermal gel memory foam that adapts to your body's contours, relieves pressure points and minimizes heat build-up for a comfortable and cool sleep experience.
9 layers of cooling comfort

Smart Temp Cooling Cover

Soft knit cooling cover with SmartTemp technology. Exclusive cool to the touch Tencel fabric blend infused with Aloe Vera, making it naturally hypoallergenic and extra gentle on your skin.

Natural Cotton Fire Barrier-No Fiberglass

Made entirely from natural cotton and without the use of fiberglass, offering you peace of mind while prioritizing health and eco-friendliness. This ensures your sleep environment remains both secure and comfortable.

ThermalRelief Gel Memory Foam

helps maintain a comfortable sleep temperature with advanced heat dissipating thermal gel that absorbs body heat, allowing you to sleep cool all night long.

Air Adapt Reactiv Memory Foam

 breathable support. Its unique design promotes breathability, allowing air to circulate freely and efficiently while conforming to your body's individual contours.

CustomComfort Pocketed Coils

Individually wrapped coils for personalized adaptive support
while minimizing motion transfer.

EdgeGuard Full Foam Encasement

Resilient high density foam encasing the entire mattress, creating a solid boundary that offers consistent, edge-to-edge support and long lasting durability to prevent roll-off or sagging.

BreezeFlow Ventilation Panel

Ventilated panel stretching across the entire mattress to promote continuous airflow and temperature regulation by efficiently channeling away body heat and allow airflow to escape.

Ultra HD FlexSupport Core Foam

Expertly crafted to provide breathable support. Its unique design promotes breathability, allowing air to circulate freely while ensuring resilient support.

ComfortSeal Non-Skid Lower Cover

Removeable machine-washable zip cover for easy care. Intelligently designed with non-skid grip material to prevent mattress from shifting.

more plush comfort mattresses

what our customers say?

Customer Reviews

Based on 21 reviews
100%
(21)
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0%
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C
Customer
Love the mattress

My husband and I have a lot of problems with shoulders and hips. I believe that this is the most comfortable mattress we've ever had.

Z
Zain R.
Great item

Very comfortable

L
Lauren L.
Comfortable

Got it for my daughter for her big girl era and she loves it. She has woken up from sweating and we keep the air on 65°. Not looking into a breathable mattress was my fault.

K
Kesha S.
I can SLEEP!

So, I went from a twin futon to this. Never slept well on the futon but this! This! I unpackaged it and immediately it puffed up almost to the full hight. Surprised the hell outta me. I'm finally able to get a good night's sleep though! Definitely would recommend!

J
Jennifer M.
Twin hybrid mattress

Like very much , comfortable , made well and very comfortable , good price

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Address - 6075 Old Canton Rd, Jackson Ms 39211

Phone Number - 800-540-9851

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S4 Nebula Medium Soft Mattress in a modern blue bedroom setting on an upholstered platform bed frame.
Exploded view of the S4 Nebula 12" Hybrid Mattress layers showcasing comfort foam and pocketed coil system.
S4 Nebula Luxury Hybrid Mattress corner cutaway view showing cooling foam layers and pocketed coil support.
Medium Soft 12 inch Hybrid Mattress in a minimalist bedroom setting on a dark grey platform bed.
S4 Nebula 12 inch Hybrid Mattress side view featuring black diamond-quilted fabric and blue accents.
Luxury 12 inch Hybrid Mattress shown on an adjustable base with the head elevated in a bedroom setting.
Internal layers of the S4 Nebula Hybrid Mattress showing multi-layered cooling foam and reinforced coils.
Medium soft S4 Nebula Hybrid Mattress in a modern bedroom setting on a minimalist upholstered platform bed.
Profile view of the 12 inch S4 Nebula Hybrid Mattress featuring black diamond-quilted fabric and blue trim.

S4 Nebula Luxury 12" Hybrid Mattress – Medium Soft

$699.00