365-Night Home Trial
Lifetime Warranty
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Save Up To 40%
Sky Cool Gel Topper
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+1 4708688999
Sky Cool Gel Topper
Sale price$99.99
365-Night Home Trial
Lifetime Warranty
Free Shipping & Returns
Save Up To 40%
Custom Comfort, Extra Cool
Experience a topper engineered for balance—firm support, ergonomic relief, cooling innovation, and effortless care, all in one design.
Premium Washable Cover
Soft, skin-friendly knit with anti-static touch. Equipped with elastic straps, non-slip bottom, and a durable zipper for easy removal and machine wash.
2-Layer Adjustable Firmness
Flip between a firm top and an extra-firm bottom. Tailor your comfort level with our innovative dual-foam construction.
Ergonomic Pain Relief
Gel-infused memory foam contours to your curves, distributes weight evenly, and aligns the spine to ease back pain and pressure points.
60% Cooler Gel Tech
Open-cell structure with cooling gel beads regulates body temperature and keeps you comfortably fresh all night.
Mattress Size Guidance
While mattress sizes vary from brand to brand, the chart below shows the typical dimensions of each bed, along
with sleeper profiles and the recommended minimum room size.

Twin
38"x75"

Full
53"x75"

Queen
60"x80"

King
76"x80"
Bed Sizes | Dimensions | Minimum room size | Number of sleepers | Maximum sleeper height |
Twin | 38" x 75" | 7" x 9.5" | 1 | <6" |
Twin XL | 38" x 80" | 8" x10" | 1 | 6" to 6'4" |
Full | 53" x 75" | 9" x 9.5" | 1-2 | <6" |
Queeen | 60" x 80" | 10" x 10" | 1-2 | 6" to 6'4" |
King | 76" x 80" | 12" x 12" | 2+ | <6" to 6'4"" |
Califarnia King | 72" x 84" | 11" x 13" | 2+ | 6'5" or taller |
Due to the handmade nature of our mattresses, their dimensions can vary by up to 2” on any given side. Helix Mattresses ship in a 47 in x 16 in x 16 in box.
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365-Night Home Trial
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Frequently Asked Questions
Get Answers to Commonly Asked Questions About SpineAlign
How does the adjustable firmness work?
The topper features a unique 2-layer foam design. Use the top side for a firm feel, or flip it to the bottom for extra-firm support—allowing you to customize comfort without buying two toppers.
Will this topper help with back pain?
Yes. The ergonomic gel memory foam conforms to your body curves, evenly distributes weight, and helps align your spine. This design relieves pressure points and effectively reduces back discomfort.
Is it cooling enough for hot sleepers?
Absolutely. Our gel-infused open-cell structure delivers 60% better breathability than standard memory foam, ensuring a fresh, temperature-balanced sleep all night.
Can I wash the cover?
Yes. The cover is removable with a premium zipper and machine washable. It also comes with anti-slip straps and a non-slip bottom to keep the topper in place.
What payment methods do you accept?
We accept Visa, Mastercard, American Express, Discover, PayPal, Amazon Pay, and financing via Affirm. All payments are securely processed via Shopify Payments.
Do you offer financing?
Yes! We partner with Affirm to offer 0% APR financing for up to 36 months. Pre-qualification is easy and won’t affect your credit score.
What is the 365-night trial?
You’ll have 365 nights to try your mattress topper at home. If it’s not the perfect fit, we’ll arrange a free return pickup—no hidden fees.
Is there a return fee?
Returns are completely free within the trial period. Some photo evidence may be required to help us process your return smoothly.
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