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← Back to Twin Mattresses

Southerland St. Simmons Firm Mattress

$499.00
Feel
Soft
Medium
Extra Firm

Firm, steady support—an easy guest-room choice for sleepers who like it solid.

Firm feel (4/5)
Guest bedroom ready
Simple, supportive comfort

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Talk to a local sleep expert—no pressure, just straight answers.

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Try it in-store and feel the difference before you decide.

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Tell us how you sleep and we’ll point you to the best match.

This firm innerspring mattress is designed for couples and guest bedrooms that want a more supportive, “on top” feel. It combines a responsive coil system with firm comfort layers to help keep your body aligned while staying simple and dependable. Available for local delivery across Boone, Banner Elk, and Blowing Rock with expert support from Blackberry Creek Mattress.

The Southerland St. Simmons Firm is a smart guest-room choice when you want something supportive and predictable for firm-preferring sleepers. The firmer surface helps keep the body more lifted and stable through the night, which many back and stomach sleepers prefer. It’s also an easy pick for couples who want a steadier feel without a lot of sink. If you want straightforward firmness that feels clean, stable, and reliable, this one keeps it simple.

Size: Twin

Pickup available at Foscoe Location

Usually ready in 2-4 days

What it’s made of

• Support core: Innerspring coil system for responsive, steady support
• Comfort layers: Firm comfort layers designed for a more lifted feel
• Cover: Soft, breathable fabric designed for basic comfort
• Construction: Innerspring build focused on straightforward support

Who's It For

• Guest bedrooms where you want a simple, supportive mattress
• Couples who prefer a firmer, more stable sleep surface
• Back and stomach sleepers who like a more lifted, level feel
• Anyone who knows they want a true firm feel without extra plush layers

Comfort & Feel

• Overall feel: Firm and supportive—more “on top” than cradled
• Pressure feel: Light cushioning with a steadier surface
• Support: Steady innerspring support for everyday alignment
• Motion: Moderate motion control for an innerspring feel
• Edge feel: Moderate edge stability for sitting and sleeping near the perimeter

Trial & Delivery Info

• Trial: No sleep trial
• Delivery: Fast, local delivery and disposal of your old mattress is available
• Locations: Available at Foscoe and Boone Mall
• In-store help: We’ll help you confirm the firmness feels right before you purchase

Specs & Certifications

• Mattress Height: approximately 11" profile
• Comfort Level: Firm (supportive feel with innerspring stability)
• Support System: Innerspring coil system for responsive, steady support
• Comfort Layers: Firm comfort layers designed for pressure relief without extra sink
• Edge Support: Standard edge support for a stable sleep surface
• Cooling Technology: None noted (standard breathable materials)
• Construction Type: Innerspring mattress (comfort layers + coils)
• Motion Isolation: Moderate motion control from comfort layers and coil design
• Adjustable Base Compatible: Yes
• Certifications: CertiPUR-US® certified foams (where applicable)
• Warranty: 5-year limited warranty

Why Shop At Blackberry Creek

• Try true firmness in person—so you don’t guess wrong online
• No-pressure guidance to match the mattress to the room and budget
• Local support after the sale if you need help or have questions
• A simple purchase that leaves you confident in a clean, reliable choice

Delivery, Setup & Disposal
See what’s included
Financing Options
See available plans

FAQs

Here are some of the most popular questions that we get asked by our customers.

Do I need a boxspring for this mattress?

Usually, no. Most customers use a solid foundation, platform bed, or an adjustable base.

If you’re using a traditional bed frame, you may need a bunkie board or a supportive foundation for proper support. If you tell us what bed frame you have, we’ll help you match the right setup.

How does delivery work?

After you purchase, we’ll coordinate a delivery time that works for your schedule.

Delivery, setup, and disposal are available. In-store, we’ll confirm what you’d like included and any access details (stairs, tight hallways, etc.) so delivery day is smooth.

Will you dispose of my old mattress?

Yes—old mattress disposal is available when we deliver your new mattress.

Just let us know at checkout so we plan the truck space and the right team for the job.

How long is the warranty and what does it cover?

Most warranties are 10 years, but some are 12 or 15 years. Your mattress warranty covers manufacturer's defects. Each manufacturer has different warranty guidelines.

Can I return my mattress if I don't like it?

Most mattresses includes a 120-night trial.

Because trial terms can vary by product and situation, we’ll walk you through the exact steps and requirements at purchase so you know what to expect and feel confident.

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