The Serta Five Star Mattress in a Box 8" Medium — a premium gel memory foam mattress delivered compressed to your door. The 8-inch profile combines Serta Premium Gel Memory Foam with a durable support core for pressure relief and spinal alignment. CertiPUR-US® certified. Available in Twin, Twin XL, Full, Queen, King, and California King. Ideal for guest rooms, bunk beds, and first apartments. Save 20% OFF with free shipping from Casa Bella Decor.

Gel Memory Foam Comfort

The top comfort layer contours to your body, relieving pressure at the hips and shoulders. The dense Serta Foam Core below provides continuous support to maintain proper spinal alignment. The universal medium feel works well for combination sleepers who shift between back, side, and stomach positions throughout the night.

Product Specifications

Brand	Serta Five Star Collection
Mattress Type	Gel Memory Foam (Bed in a Box)
Comfort Level	Medium
Height	8 Inches
Sizes	Twin, Twin XL, Full, Queen, King, California King
Certification	CertiPUR-US® (no ozone depleters, mercury, or formaldehyde)
Shipping	FREE Ground Delivery (USA-wide)

Setup Instructions

Step 1: Move the box to your bedroom before opening — the mattress is heavy once unrolled.

Step 2: Unroll the mattress onto your foundation or platform bed. Cut the plastic wrapping with scissors (not a knife).

Step 3: Allow 24–48 hours for full expansion to 8 inches and for packaging odor to dissipate.

Frequently Asked Questions

Is an 8-inch mattress thick enough for adults?
Yes, for lighter adults and teens. For heavier daily use, consider the 10-inch Five Star model for additional support depth.

Does this need a box spring?
No. Place on a platform bed, a slatted frame (slats under 2" apart), or a Serta mattress foundation.

Is the foam safe?
Yes. CertiPUR-US® certified — made without ozone depleters, heavy metals, formaldehyde, or phthalates, with low VOC emissions.