How Thick Is The Lull Mattress? Layer Heights, Feel, and What It Means for You
If you’re searching for “How Thick Is The Lull Mattress”, you’re likely trying to understand whether its height will work with your bed frame, sheets, and comfort preferences. This FAQ-style guide explains the typical thickness, how the layers are arranged, and why mattress height matters when you’re deciding if it’s a good fit for your sleep setup.
How thick is the Lull mattress?
The original all-foam Lull mattress is typically around 10 inches thick in total height.
That overall profile usually includes:
- A comfort layer of memory foam on top
- A transition layer of slightly firmer foam in the middle
- A base layer of dense support foam on the bottom
Exact measurements can vary slightly depending on the specific version or model year, but the Lull mattress is generally designed to fall into the standard 10-inch profile that many all-foam beds use.
Why does Lull mattress thickness matter?
Knowing how thick the Lull mattress is helps with several practical decisions:
- Bed frame compatibility: Most modern frames and bases are built to work well with a mattress around 10–12 inches thick. A 10-inch profile fits easily on most platforms, slatted frames, or adjustable bases.
- Ease of getting in and out of bed: A 10-inch mattress, when combined with a standard bed frame and foundation, keeps the sleeping surface at a height many people find comfortable for sitting and standing.
- Fitted sheet depth: Many standard fitted sheets are designed to work with mattresses about 10 inches thick, sometimes with a bit of extra stretch.
- Overall feel: Thickness, along with foam density and firmness, influences how much you sink in, how supported you feel, and how the mattress responds to movement.
While thickness alone does not determine comfort, it sets the framework for how the foam layers can be arranged and how they will perform together.
How are the layers in a Lull mattress arranged?
While exact constructions can vary over time, a typical 10-inch all-foam design similar to the Lull mattress usually looks something like this:
- Top comfort layer: A few inches of memory foam or similar material designed to contour to your body and relieve pressure at areas like shoulders and hips.
- Middle transition layer: A slightly firmer foam that helps gradually transfer weight from the softer top into the dense core, reducing the feeling of “bottoming out.”
- Bottom support core: A thicker, high-density foam base that provides overall structure, stability, and long-term support.
This layered approach allows a 10-inch mattress to balance cushioning and support without needing to be extremely thick.
How does a 10-inch Lull mattress thickness compare to other common profiles?
Many all-foam mattresses fall within a relatively narrow height range. Here’s a simple comparison to help you place the Lull mattress thickness in context:
| Mattress Profile | Typical Height Range | General Notes |
|---|---|---|
| Slim / Low | 6–8 inches | Compact, lighter, may feel firmer or less cushioned |
| Standard Foam | 9–11 inches | Common for all-foam beds; Lull fits here |
| Thick / Plush | 12–14+ inches | Often more layers or thicker comfort sections |
Key takeaway:
A 10-inch Lull mattress sits in the standard all-foam category, aiming to offer a blend of contouring comfort and support without being overly tall or bulky.
Will the Lull mattress thickness affect how firm it feels?
The answer is: indirectly.
The firmness and feel of the Lull mattress are mainly influenced by:
- The type of foams used
- The density of those foams
- How thick each individual layer is within the 10-inch total
Within a 10-inch design, the brand can fine-tune feel by adjusting the thickness of the comfort layer versus the base layer. For example:
- A thicker comfort layer may allow for more pressure relief and contouring.
- A thicker support core may emphasize stability and overall firmness.
However, two mattresses can both be 10 inches thick and feel quite different, depending on how those inches are distributed across layers.
Is a 10-inch Lull mattress suitable for all sleepers?
Suitability depends more on your body type, sleeping position, and preference than on thickness alone. Still, some general observations about a 10-inch, all-foam design include:
- Back sleepers: Often find this height and construction supportive enough for neutral spinal alignment, especially with a balanced firmness.
- Side sleepers: May appreciate the pressure relief from the top foam layer, provided it is soft and thick enough.
- Stomach sleepers: Often prefer slightly firmer support; a 10-inch foam mattress can offer this if the comfort layer isn’t too soft.
For heavier body weights, some people prefer thicker mattresses (12 inches or more) or designs with extra support layers, but others are comfortable on a well-constructed 10-inch mattress, depending on firmness and base support.
How does mattress thickness affect durability?
Durability is influenced more by foam quality and density than by an extra inch or two of height. Within the 10-inch Lull mattress design:
- A denser support core can help the mattress maintain its shape over time.
- A resilient comfort layer can reduce the likelihood of deep body impressions forming quickly.
Thickness plays a secondary role: a 10-inch mattress with solid materials can last longer and perform better than a thicker one made from lower-quality foams.
✅ Quick Mattress Takeaways
Key points consumers should understand about “How Thick Is The Lull Mattress”
- The Lull mattress is generally about 10 inches thick.
- Its height comes from a stack of foam layers: comfort, transition, and support core.
- 10 inches is a standard all-foam mattress profile, compatible with most bases and fitted sheets.
- Thickness alone does not determine comfort; layer design, foam quality, and firmness matter just as much.
- A 10-inch mattress typically offers a balance of support, contouring, and practicality for everyday use.
Understanding how thick the Lull mattress is helps you check fit with your bed frame, bedding, and comfort preferences, so you can better judge whether this style of mattress suits your sleep setup.

