Twin XL Mattresses, 12 Inch Hybrid Twin XL Mattress in a Box, Memory Foam and Individual Pocket Spring Breathable Comfort for Sleep Supportive and Pressure Relief, CertiPUR-US, 39"*80"*12"

Features

• Comfort Hybrid Twin XL MattressExperience the perfect blend of support and plush comfort with our 12-inch Twin XL mattress (80"x39"). Featuring individual pocket springs and slow-rebound foam, it ergonomically cradles pressure pointsfeet, hips, shoulders, and headfor cloud-like relaxation.
• Certified Safe & Skin-FriendlyThe 12-inch Twin XL mattress is CertiPUR-US certified and Oeko-Tex Standard 100 certified, ensuring that its materials are safe and non-toxic. The breathable cover and medium-firm feel offer ideal spinal alignment and pressure relief for all sleep positions.
• Advanced Motion IsolationThe individually wrapped coil system absorbs movement, so you (or your partner) wont feel disturbances. Reinforced edges prevent sagging, maximizing sleep space.
• Mattress in a box & Easy to set upPerfect for all bed frames. Bed in a box for convenient transport. Upon receipt the Twin XL size mattress, Please allow 24-72 hours for your hybrid mattress to expand to the original size, then you can cosy into a dream
• 101-day trial periodEach Slumber Castle innerspring mattress comes with a 101-night free sleep trial. If you have any questions, Our customer support is available 24/7 to assist you. (Go to Your Orders > Get Help with Order > Ask Product Question)
• Please allow 24-72 hours for full expansionto its final 12-inch height and Twin XL dimensions (80" L x 38" W).

Description

With a medium-firm feel, the mattress offers the right amount of comfort and stability. The ergonomic design supports your body’s natural alignment and provides relief for key pressure points, whether you sleep on your back, side, or stomach. The individually pocketed coils minimize motion transfer, allowing you to sleep undisturbed, even if your partner moves. The high-resilience foam absorbs shock and noise, ensuring a peaceful sleep. We spend nearly half our lives in bed, and at Slumber Castle, we believe that quality sleep is the foundation of a better, healthier life. Our mission is to create a sleep environment that’s not only comfortable, but also supportive, safe, and restorative. From premium materials to thoughtful design, every Slumber Castle mattress is crafted to elevate your sleep experience. This Slumber Castle hybrid mattress is made with top-quality materials that are CertiPUR-US and OEKO-TEX STANDARD 100 certified—meaning they’re breathable, safe, and free from harmful substances. Our mattress features zoned ergonomic support that adapts to your body and relieves pressure on your shoulders, back, and hips. Individually wrapped coils promote natural spine alignment and minimize motion transfer, so you can sleep undisturbed—even if your partner tosses and turns. The mattress comes zipped and compressed in a compact box, making it easy to carry and ideal for your first apartment, guest room, or any space where convenience matters. Just unbox, unroll, and watch it expand. 1. Safety Notice: Slumber Castle mattresses arrive in a compact but heavy box. Please use two people when lifting or moving it upstairs. Use the included cutting tool carefully and keep a safe distance—the mattress expands rapidly once unwrapped. Allow 24–72 hours for full expansion. If you're new to boxed mattresses, we recommend watching the full unboxing video in the “Main Product Video” or “A+ Video” section for step-by-step guidance. 2. Edge Sitting Tip: For better support when sitting on the edge, sit slightly inward—this provides more stability for your hips and legs. 3. Comfort Takes Time: Firmness is subjective. Some people may find the mattress soft, others firm. Allow a few nights for your body to fully adjust to the medium-firm support.

Brand: Slumber Castle

Size: Twin XL

Product Dimensions: 80"L x 38"W x 12"Th

Item Firmness Description: Medium Firm

Top Style: Euro Top

Cover Material: Polyester

Number of Layers: 2

Fill Material: Gel Memory Foam, High Density Foam

Special Feature: Breathable, Edge Support, Innerspring Hybrid Mattress, Low Motion Transfer, Medium-Firm plush feel

Color: Royal Purple

Item Firmness Description: Medium Firm

Number of Layers: 2

Additional Features: Breathable, Edge Support, Innerspring Hybrid Mattress, Low Motion Transfer, Medium-Firm plush feel

Mattress Coil Type: Pocketed Coil

Construction Type: Hybrid

Number of Mattress Coils: 390

Size: Twin XL

Item Dimensions L x W x Thickness: 80"L x 38"W x 12"Th

Item Thickness: 12 inches

Item Depth: 12 inches

Item Dimensions: 76.77 x 49.21 x 11.02 inches

Cover Material: Polyester

Fill Material: Gel Memory Foam, High Density Foam

Product Care Instructions: Avoid excessive pressure and jumping, Clean with a dry cloth moistened with water, Cycle Gently, Keep dry and ventilated, Rotate and turn regularly, Use a mattress protector

Mattress Comfort Layer Material: Gel Memory Foam

Material Type: Polyester, Gel Memory Foam, High Density Foam

Brand Name: Slumber Castle

Model Name: Slumber Castle

Product Benefits: Full Body Support, Keeping Cool, Motion Isolation, Release Pressure, Strong Edge Support

Model Number: f55ba816-74e1-4902-906b-e15ecfbce458

Number of Items: 1

Number of Packs: 1

Manufacturer: Slumber Castle

Unit Count: 1 Count

Age Range Description: All ages

top-style: Euro Top

Color: Royal Purple

Style Name: 12 Inch Luxury