Extra Firm vs Medium Firm Memory Foam: How to Choose
By Ceiling Fans, Home Store for Light Fixtures | Published: 2026-11-02
Category: Comparisons
Compare an extra firm 6-inch aloe vera memory foam mattress with a medium firm 12-inch Artemisia foam mattress, and learn which firmness and height fit your sleep style.
Quick answer
Choose the extra firm 6-inch aloe vera memory foam mattress if you sleep on your back or stomach and want a thin, firm, low-profile surface. Choose the medium firm Artemisia 12-inch foam mattress if you want a thicker, more conforming layer that cushions pressure points without feeling soft.
What the firmness labels actually change
Firmness describes how far the surface lets your body sink in, not how much support the mattress provides underneath. The 6-inch aloe vera mattress uses an extra firm 3-layer support system, so it holds a flatter sleep surface. The Artemisia pairs a 9.5-inch standard foam base with a 2.5-inch memory foam comfort layer, giving it a medium firm feel with more give at the top.
That difference matters most at the hips and shoulders. An extra firm surface keeps the spine straighter for back and stomach sleepers, while a medium firm top layer lets side sleepers sink slightly to reduce pressure. Neither design is inherently better; they solve different comfort problems.
Height changes more than firmness
The 6-inch mattress is a low-profile option that suits platform beds, bunk beds, and guest setups where a tall mattress would crowd the room. The Artemisia is a 12-inch mattress, so it sits higher and needs a foundation that can handle the extra height and weight.
A taller mattress also gives you more foam between you and the bed frame, which can soften the feel over time. A thinner mattress like the 6-inch model keeps its firm character but offers less cushioning if you are a heavier sleeper or a dedicated side sleeper.
Cover material and certification
The 6-inch model includes a removable cover infused with aloe vera extract, which is designed to create a cleaner, softer sleeping surface. If you value an easy-to-refresh cover and a plant-based touch, that is a practical advantage.
Both mattresses are CertiPUR-US certified and ship in a box, so you can set them up without a delivery appointment. The Artemisia comes in multiple sizes and colors, while the 6-inch model lists color as its only option. Check the size menu carefully if you need a twin memory foam mattress rather than a larger size.
Trade-offs to weigh before you buy
- Support vs pressure relief: The extra firm 6-inch model keeps your spine aligned with minimal sink, which helps back and stomach sleepers. The medium firm Artemisia lets the 2.5-inch memory foam layer contour to your body, which reduces pressure on side-sleeping shoulders and hips. If you wake with shoulder or hip pressure, the medium firm surface is the more comfortable starting point.
- Low profile vs deep cushioning: A 6-inch mattress fits platform beds, bunk beds, and tight rooms without adding height. A 12-inch mattress like the Artemisia gives you more foam depth and a taller bed, so confirm your foundation and room layout before ordering. Measure your bed frame height and any under-bed clearance before choosing the 12-inch option.
- Cover care vs size flexibility: The 6-inch mattress offers a removable aloe vera infused cover but only a color option, so size choices are limited. The Artemisia comes in multiple sizes and colors, which makes it easier to match a specific bed and room. If you need a twin memory foam mattress for a guest room, check the size menu on the Artemisia first.
Product facts
- 6 Inch Aloe Vera Infused Memory Foam Twin Mattress with 3-Layer Extra Firm Support: 6-inch memory foam mattress with a 3-layer extra firm support system and an aloe vera infused removable cover. The extra firm build suits back and stomach sleepers who want a flat, stable surface, and the removable cover makes it easier to keep the sleeping surface fresh.
6 Inch Aloe Vera Infused Memory Foam Twin Mattress with 3-Layer Extra Firm Support - Artemisia 12" White Memory Foam Medium Firm 9.5" Standard Foam Mattress: 12-inch Artemisia mattress with a 9.5-inch standard foam base and a 2.5-inch memory foam comfort layer. The thicker medium firm profile gives side sleepers more pressure relief at the hips and shoulders while still supporting the spine.
Artemisia 12" White Memory Foam Medium Firm 9.5" Standard Foam Mattress
Who should choose which
Best for
- Back and stomach sleepers who want a firm, flat surface
- Shoppers who need a low-profile 6-inch mattress for a platform or bunk bed
- Anyone who wants a removable aloe vera infused cover
Not for
- Side sleepers who need cushioning at the shoulders and hips
- Shoppers who want a taller, thicker mattress profile
- Buyers who need a wide range of size options
