penny.
Sleepys firm mattress on a bed in a brightly lit bedroom.
Diagram showing the layers and construction of the Sealy mattress.
Sleepys mattress set in its box, ready for setup in a bedroom.
Close-up of the black mattress cover with Sleepys by Sealy logo on a bed.
Sealy · Sleepy's

Slumber Firm Mattress

$149.90
Size

Available at

mattressfirm.comBest Price
$149.90
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The Sleepy's By Sealy Slumber Firm Mattress is designed for sleepers who prefer a steadier, more supportive feel, specifically those who sleep on their back or stomach. This mattress features individually wrapped coils that contour to the body's natural shape for responsive support and reduced motion transfer. To enhance comfort and temperature regulation, it includes gel foam layers that provide pressure relief and help the sleeper stay cool. For convenience, it arrives as a mattress-in-a-box, requiring a simple unboxing and unrolling process with up to 72 hours to fully expand.

  • Individually wrapped coils reduce motion transfer
  • Gel foam layers contour and relieve pressure
  • Designed for back and stomach sleepers
  • Helps regulate body temperature for cooler sleep
  • Ships in a box for easy setup

Details

Category
Mattresses
Mattress Features
Motion isolation, Edge support, Cooling function, Adjustable base compatibility
Recommended Sleep Position
Back, Stomach
Pattern
Texture
Innerspring Coil Type
Pocket (individually wrapped)
Coil System Type
Pocket coils
Bedding Size
Queen, Double
Sleep Position Suitability
Back sleeper, Stomach sleeper
Firmness
Firm
Mattress Top Type
Euro top
Memory Foam Infusion Material
Cooling gel
Materials
Rayon, Gel Poly Foam, Firm Foam, Pocketed Coils

Questions & answers

How much does it cost, and where can I buy it?
This Sealy mattress is sold by 1 retailer for $149.90. Available at mattressfirm.com.
Is it in stock?
Yes, it's currently in stock.
What are the key features?
Key features include Individually wrapped coils reduce motion transfer, Gel foam layers contour and relieve pressure, Designed for back and stomach sleepers, Helps regulate body temperature for cooler sleep, and Ships in a box for easy setup.
What is it made of?
It's made of rayon, gel poly foam, firm foam, and pocketed coils.
What sizes are available?
It's available in twin, twin XL, full, queen, king, and cal king.
What's its coil system type?
Its coil system type is pocket coils.