King Comfort Plus 10 in Hybrid Mattress - Lumbar Gel Memory Foam

In this review the Signature Design king Comfort Plus 10 in Hybrid Mattress is evaluated for sleepers who want a balance of support and cushioning without exotic materials. The main reason to consider this mattress is its combination of a wrapped coil support core and a lumbar-friendly gel memory foam layer, which aims to reduce motion transfer while offering targeted pressure relief. It arrives compressed in a box for easy setup and uses CertiPUR-US certified foam, making it a practical option for buyers seeking convenience, cooling, and a firm-but-comfortable sleeping surface.

Key Features

• Hybrid construction: A wrapped coil system provides core support and helps limit motion transfer for shared beds.
• Lumbar gel memory foam: The gel-infused memory foam layer adds targeted lumbar support to ease lower back pressure overnight.
• Cooling cover: The stretch cover is designed to disperse heat and help maintain a comfortable sleeping temperature.
• Fiberglass free: The mattress is manufactured without fiberglass, using CertiPUR-US foam tested for emissions and durability.
• Boxed delivery: Arrives compressed in a box for straightforward setup; unroll and allow up to 48 hours to fully expand.
• Warranty: A 10 year limited warranty provides long-term coverage for manufacturing defects.

Who It's For

This mattress is a sensible choice for couples who want reduced motion transfer and a moderate feel from a hybrid design, and for shoppers who prefer the convenience of a mattress in a box with easy setup. The lumbar-focused foam suits back sleepers who need some extra reinforcement in the lower back area.

Shoppers who want a very plush, sink-in feel or an ultra-firm orthopaedic bed should look elsewhere, and anyone who must mix-and-match foundations from different brands should check warranty details since purchasing foundations from other brands may affect coverage.

Pros & Cons

Pros

• Comfortable balance of cushioning and support thanks to the combination of quilt foam and wrapped coils.
• Cooling stretch cover helps dissipate heat for a more comfortable sleep temperature.
• Easy to set up from the box and certified safe foam with a 10 year limited warranty.
• Good value for shoppers seeking hybrid support without specialty materials.

Cons

• Firmness is reported mixed by customers, so side sleepers who prefer a distinctly plush surface may find it too firm.
• May require up to 48 hours to fully expand after unboxing, which delays immediate use.

Specifications

Brand	Signature Design by Ashley
Size	King 75 in x 79 in x 10 in
Construction	Hybrid with wrapped coil system and memory foam layers
Comfort layer	Lumbar-friendly gel memory foam and soft quilt foam
Cover	Stain-treated stretch cover with cooling properties
Certifications	CertiPUR-US certified foams
Warranty	10 year limited warranty

Our Verdict

The Comfort Plus 10 in Hybrid Mattress is a practical pick for couples and back sleepers who want a balanced hybrid feel with targeted lumbar support and cooling cover at a reasonable price. It combines a wrapped coil core and gel memory foam to reduce motion and add lumbar comfort, making it a good value for shoppers who want reliable support without luxury pricing.

Frequently Asked Questions

How long before the mattress is ready to sleep on?
Allow up to 48 hours for the mattress to fully expand after unrolling; it is usable sooner but expansion improves feel.

Is this mattress safe for indoor air quality?
Yes, the foam layers are CertiPUR-US certified, tested for emissions, content and durability.

Can it be used with an adjustable base?
Yes, the mattress is compatible with adjustable bases, though warranty terms note mixing brands for foundations may affect coverage.